Update setup.py

Author: thinkingserious

setup.py

@@ -11,7 +11,7 @@
     long_description = open('README.txt').read()
 
 def getRequires():
-    deps = ['smtpapi==0.3.1', 'python_http_client==1.2.4']
+    deps = ['smtpapi==0.3.1', 'python_http_client>=1.2.4']
     if sys.version_info < (2, 7):
         deps.append('unittest2')
     elif (3, 0) <= sys.version_info < (3, 2):