Do not attempt to copy files to the "Program Files" directories
Fix a few TypeScript warnings
Merge pull request #51 from phillip-hopper/TypeScript-Cleanup

Fix a few TypeScript warnings
Provide a different message when the file has no extension
Merge pull request #55 from andrew-polk/BL512_DRTxtFileMessage

Improve message informing user that sample texts should be .txt
Merge pull request #57 from phillip-hopper/BL-634

Do not attempt to copy files to the "Program Files" directories
Add shared Visual Studio and ReSharper settings

The VS settings can be imported through Tools/Import and Export
Settings, the R# ones through ReSharper/Manage Options, Import/Export
Settings, Import from File.
Add shared MonoDevelop setting file and settings to solution

The settings can be imported by running Edit/Custom Policies,
Add Policy/From File.