New Folder + Move Folder Up + Move Folder Down

Reflection-based folder organization support
Folder Commands - validation, cleanup

Removed Rename command
Added project-wide folder name validation
Little refactor based on comments
Folder commands - little bugfix and cleanup
use the lexer to do colorization more accurately
add SourceCodeClassifier test for F# namespaces
LanguageService does not create getLexerSymbol function
update FCS to 0.0.40

fix the issue with colorizing F# namespaces
comments-based refactoring
getFolderNames... duplication fix
fix invalid coloring of double quoted methods
Merge pull request #219 from vasily-kirichenko/use-lexer-in-colorizer

Use the lexer to do colorization more accurately
Merge branch 'folders' into fsprojects_master

Conflicts:
	src/FSharpVSPowerTools/PowerToolsCommandsPackage.cs