Merge pull request #1 from pcdummy/fix-copy-of-framework.dll

Fix copy of the NAppUpdate.Framework.dll, to the updater.exe directory.
Merge pull request #2 from pcdummy/add-valid-updatefeed-url

Add a valid UpdateFeed.xml URL to our server for a good first usage.
Merge pull request #3 from pcdummy/Utils_Filesystem-Path_Seperator

Fix Path seperator on Unix.
Merge pull request #5 from pcdummy/ignore-sha256-case

Ignore case on SHA256 checksums.
Ignore case on SHA256 checksums, part3.
Download the updater instead of extracting it from the binary.
Add docs to the build_linux.sh script, add an option to build dynamic executeables.
Merge branch 'build_linux.sh' into download-updater
Use .NET 4.0 for LinuxTest and the Updater.
Do not include the Updater into the .exe.
Forgot a file for the .NET 4.0 change.
Do not set the Proxy if its null, use the System Proxy instead.
Always set the CWD to the Applications Path for the Condition checkers.
Use cli in PATH instead of /usr/bin/cli for .exe files.
Add buildscript to cross compile the updater for windows on linux.
Add ILRepack for the crosscompile of the updater.
Bump version to 0.1.4.0.
Merge download-updater.