diff --git a/poetry.lock b/poetry.lock
index 9e17f58..1b23825 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -23,8 +23,8 @@ optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [package.extras]
-azure-pipelines = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "pytest-azurepipelines"]
-dev = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "sphinx", "pre-commit"]
+azure-pipelines = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "pytest-azurepipelines", "six", "zope.interface"]
+dev = ["coverage", "hypothesis", "pre-commit", "pympler", "pytest (>=4.3.0)", "six", "sphinx", "zope.interface"]
 docs = ["sphinx", "zope.interface"]
 tests = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
 
@@ -121,8 +121,8 @@ python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
 zipp = ">=0.5"
 
 [package.extras]
-docs = ["sphinx", "rst.linker"]
-testing = ["packaging", "importlib-resources"]
+docs = ["rst.linker", "sphinx"]
+testing = ["importlib-resources", "packaging"]
 
 [[package]]
 name = "jinja2"
@@ -149,7 +149,7 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, != 3.4.*"
 [package.extras]
 cssselect = ["cssselect (>=0.7)"]
 html5 = ["html5lib"]
-htmlsoup = ["beautifulsoup4"]
+htmlsoup = ["BeautifulSoup4"]
 source = ["Cython (>=0.29.7)"]
 
 [[package]]
@@ -224,7 +224,7 @@ dev = ["pre-commit", "tox"]
 
 [[package]]
 name = "py"
-version = "1.8.1"
+version = "1.10.0"
 description = "library with cross-python path, ini-parsing, io, code, log facilities"
 category = "dev"
 optional = false
@@ -261,6 +261,7 @@ colorama = {version = "*", markers = "sys_platform == \"win32\""}
 more-itertools = ">=4.0.0"
 pluggy = ">=0.7"
 py = ">=1.5.0"
+setuptools = "*"
 six = ">=1.10.0"
 
 [[package]]
@@ -271,6 +272,19 @@ category = "dev"
 optional = false
 python-versions = "*"
 
+[[package]]
+name = "setuptools"
+version = "65.3.0"
+description = "Easily download, build, install, upgrade, and uninstall Python packages"
+category = "dev"
+optional = false
+python-versions = ">=3.7"
+
+[package.extras]
+docs = ["furo", "jaraco.packaging (>=9)", "jaraco.tidelift (>=1.4)", "pygments-github-lexers (==0.0.5)", "rst.linker (>=1.9)", "sphinx", "sphinx-favicon", "sphinx-hoverxref (<2)", "sphinx-inline-tabs", "sphinx-notfound-page (==0.8.3)", "sphinx-reredirects", "sphinxcontrib-towncrier"]
+testing = ["build[virtualenv]", "filelock (>=3.4.0)", "flake8 (<5)", "flake8-2020", "ini2toml[lite] (>=0.9)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "mock", "pip (>=19.1)", "pip-run (>=8.8)", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=1.3)", "pytest-flake8", "pytest-mypy (>=0.9.1)", "pytest-perf", "pytest-xdist", "tomli-w (>=1.0.0)", "virtualenv (>=13.0.0)", "wheel"]
+testing-integration = ["build[virtualenv]", "filelock (>=3.4.0)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "pytest", "pytest-enabler", "pytest-xdist", "tomli", "virtualenv (>=13.0.0)", "wheel"]
+
 [[package]]
 name = "six"
 version = "1.14.0"
@@ -321,7 +335,7 @@ python-versions = "*"
 
 [package.extras]
 docs = ["Sphinx (>=1.8.1)", "docutils", "pylons-sphinx-themes (>=1.0.9)"]
-testing = ["nose", "coverage (>=5.0)"]
+testing = ["coverage (>=5.0)", "nose"]
 
 [[package]]
 name = "webob"
@@ -333,7 +347,7 @@ python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*"
 
 [package.extras]
 docs = ["Sphinx (>=1.7.5)", "pylons-sphinx-themes"]
-testing = ["pytest (>=3.1.0)", "coverage", "pytest-cov", "pytest-xdist"]
+testing = ["coverage", "pytest (>=3.1.0)", "pytest-cov", "pytest-xdist"]
 
 [[package]]
 name = "webtest"
@@ -351,7 +365,18 @@ WebOb = ">=1.2"
 
 [package.extras]
 docs = ["Sphinx (>=1.8.1)", "docutils", "pylons-sphinx-themes (>=1.0.8)"]
-tests = ["nose (<1.3.0)", "coverage", "mock", "pastedeploy", "wsgiproxy2", "pyquery"]
+tests = ["PasteDeploy", "WSGIProxy2", "coverage", "mock", "nose (<1.3.0)", "pyquery"]
+
+[[package]]
+name = "wheel"
+version = "0.34.2"
+description = "A built-package format for Python"
+category = "dev"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+
+[package.extras]
+test = ["pytest (>=3.0.0)", "pytest-cov"]
 
 [[package]]
 name = "zipp"
@@ -362,8 +387,8 @@ optional = false
 python-versions = ">=3.6"
 
 [package.extras]
-docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
-testing = ["jaraco.itertools", "func-timeout"]
+docs = ["jaraco.packaging (>=3.2)", "rst.linker (>=1.9)", "sphinx"]
+testing = ["func-timeout", "jaraco.itertools"]
 
 [metadata]
 lock-version = "1.1"
@@ -561,8 +586,8 @@ pluggy = [
     {file = "pluggy-0.13.1.tar.gz", hash = "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0"},
 ]
 py = [
-    {file = "py-1.8.1-py2.py3-none-any.whl", hash = "sha256:c20fdd83a5dbc0af9efd622bee9a5564e278f6380fffcacc43ba6f43db2813b0"},
-    {file = "py-1.8.1.tar.gz", hash = "sha256:5e27081401262157467ad6e7f851b7aa402c5852dbcb3dae06768434de5752aa"},
+    {file = "py-1.10.0-py2.py3-none-any.whl", hash = "sha256:3b80836aa6d1feeaa108e046da6423ab8f6ceda6468545ae8d02d9d58d18818a"},
+    {file = "py-1.10.0.tar.gz", hash = "sha256:21b81bda15b66ef5e1a777a21c4dcd9c20ad3efd0b3f817e7a809035269e1bd3"},
 ]
 pycodestyle = [
     {file = "pycodestyle-2.5.0-py2.py3-none-any.whl", hash = "sha256:95a2219d12372f05704562a14ec30bc76b05a5b297b21a5dfe3f6fac3491ae56"},
@@ -599,6 +624,10 @@ regex = [
     {file = "regex-2020.4.4-cp38-cp38-win_amd64.whl", hash = "sha256:5bfed051dbff32fd8945eccca70f5e22b55e4148d2a8a45141a3b053d6455ae3"},
     {file = "regex-2020.4.4.tar.gz", hash = "sha256:295badf61a51add2d428a46b8580309c520d8b26e769868b922750cf3ce67142"},
 ]
+setuptools = [
+    {file = "setuptools-65.3.0-py3-none-any.whl", hash = "sha256:2e24e0bec025f035a2e72cdd1961119f557d78ad331bb00ff82efb2ab8da8e82"},
+    {file = "setuptools-65.3.0.tar.gz", hash = "sha256:7732871f4f7fa58fb6bdcaeadb0161b2bd046c85905dbaa066bdcbcc81953b57"},
+]
 six = [
     {file = "six-1.14.0-py2.py3-none-any.whl", hash = "sha256:8f3cd2e254d8f793e7f3d6d9df77b92252b52637291d0f0da013c76ea2724b6c"},
     {file = "six-1.14.0.tar.gz", hash = "sha256:236bdbdce46e6e6a3d61a337c0f8b763ca1e8717c03b369e87a7ec7ce1319c0a"},
@@ -661,6 +690,10 @@ webtest = [
     {file = "WebTest-2.0.34-py2.py3-none-any.whl", hash = "sha256:da9cf14c103ff51a40dee4cac7657840d1317456eb8f0ca81289b5cbff175f4b"},
     {file = "WebTest-2.0.34.tar.gz", hash = "sha256:71114cd778a7d7b237ec5c8a5c32084f447d869ae62e48bcd5b73af211133e74"},
 ]
+wheel = [
+    {file = "wheel-0.34.2-py2.py3-none-any.whl", hash = "sha256:df277cb51e61359aba502208d680f90c0493adec6f0e848af94948778aed386e"},
+    {file = "wheel-0.34.2.tar.gz", hash = "sha256:8788e9155fe14f54164c1b9eb0a319d98ef02c160725587ad60f14ddc57b6f96"},
+]
 zipp = [
     {file = "zipp-3.1.0-py3-none-any.whl", hash = "sha256:aa36550ff0c0b7ef7fa639055d797116ee891440eac1a56f378e2d3179e0320b"},
     {file = "zipp-3.1.0.tar.gz", hash = "sha256:c599e4d75c98f6798c509911d08a22e6c021d074469042177c8c86fb92eefd96"},