Fix, need to provide this method for TryFinally expressions too.

* This corrects Issue#139.
MacOS Standalone: Added support for checking the opened files

* Using "dtruss" instead of "strace".

* Seems to prove that standalone on MacOS works.
Debian: Added support for building in cowdancer with eatmydata activated.
Added warning for using unsupported Python versions.

* As suggested in Issue#138 by Alexander Rødseth

* For tests, a way to skip this warning might be added later.
Fix, couldn't compile a module "state" due to conflict with system API.
More white listing for standard library modules
GUI: Updated to latest version with improved Windows support.
User Manual: Minor improvements
Added support for running release test runner with 3.4
Minor cleanups
Python3.4: Need to set f_gen to NULL, otherwise standard frame clear might segfault.
Python3.4: Compatibility fix for import error message.
Python2.6: Fixup for the lambda reformulation, del needs to be done tolerant.
Python3.4: Temporarily revert "__class__" handling to Python3.3

* For that we have code generation that works

* The differences don't matter as much, and for real solution a
  major refactoring should be done to how variable references do
  work.
Python3.4 Tests: Made test portable, "array" module makes new checks.
Python3.4 Tests: Temporarily basic whitelist tests currently fail.

* Nothing really important is showing up there. Mostly dictionary order
  stuff.

* The whitelist is seen as a TODO list for resolving the issues as we
  continue with enhancing 3.4 support later.
Python3.4: Compatibility fix for error message of "nonlocal"

* The "--improved" behaviour for other Python3 versions is now the
  standard.
Python3.4: Compatibility fix for "global" error messages.

* The "--improved" behaviour is now the standard, and the line of the
  global statement is used instead of the function.
Python3.4 Standalone: Fixup to allow standalone to compile.

* Doesn't actually work though.

* Const as const can wasn't applied, so this is generally a fix.
Python3.4: Fix, the "__initializing__" attribute for modules is no more.