Metalinks Code

Improved merge script to handle try/except cases and not double import

Update to 4.0. Added in bugfixes from Appupdater codebase.

Added support for pyinstaller and py2exe

Added clean call in setup.py

Updates to remove dependency on pyme

Bugfix for build script to remove unneeded import statements

Added translation support, PGP signatures based on pyme, updated to new version 3.7

Added language support

Set SVN properties, set user agent as a variable

Further broke down code into a checker library, fixed errors.