Raygun4py

BugFixes
- Further improved WSGI request handling and fixes problems with forms and WSGI requests ([76](https://github.com/MindscapeHQ/raygun4py/pull/76))

Thanks ericb-granular

Bugfix:
- Fix request building in WSGI middlewares that had not been updated to use the new improved WSGI request handling, thanks for noticing ericb-granular ([73](https://github.com/MindscapeHQ/raygun4py/pull/73))

Breaking changes:
- Support for Python 2.6 has been dropped

Features:
- Improved WSGI request request handling, Thanks ericb-granular ([70](https://github.com/MindscapeHQ/raygun4py/pull/70))

For pre 4.0.0 changelog see CHANGELOG.old.rst