Bugfixes/enhancements by matthiasblaesing

Unoffical changes from Pull Request #4:

• Adjust mktime implementation to align with PHP implementation
• Implementation of try-finally
• Implement %r and %R format codes for strftime

Thanks for your contribution, Matthias!

Bugfix release

Unofficial changes:

• Allow multiple queries in a database statement (JDBC configuration "allowMultiQueries=true")
• Fixed problem with backslashes in path names on Windows
• Fixed several problems when combining binary strings with UTF-8 strings (comparison failed, concatenation broke non-UTF-8 characters)
• Made the use of exit values possible in CLI (exit(n))
• Avoid illegal JSON when encoding NaN or Infinity values (not allowed in JSON)
• Made DOMNamedNodeMap iterable (fixed #3, makes the use of XML2Array class possible)

First Quercus release with unofficial patches

First release including unofficial patches which made Quercus useable amongst others with the following projects:

• Laravel
• Symfony
• PHPExcel
• PHPUnit

The following major improvements have been done beside countless smaller bugfixes:

• Added xdebug module, working fine together with PhpStorm's xdebug implementation (other XDebug clients have not been tested).
• Improved stack traces of exceptions
• Fixed tons of UTF-8 problems when using "unicode.semantics=on". Release is not tested for "unicode.semantics=off".
• Partly implemented "ZipArchive"
• Fixes in XML parsing and writing
• Support for PHPUnit
• TLS support when sending mails