F# syntax highlighting had duplicate 'sig' keyword

Removed the duplicate! This is an OCaml reserved word, see:
http://msdn.microsoft.com/en-us/library/dd233249.aspx
[WinPlat] Implementation of GetApplication for Windows Platform
Connected implementation of AssocQueryString module also present.
[WinPlat] Remove *itself* MD/XS from Open With List
Not allow an entry of MonoDevelop/Xamarin Studio to be present
in the Open With Right click Menu.
[WinPlat] Code Migration to Win32.cs
Assocation String, Association Flags enums shifted to Win32.cs
AssocQueryStringW shifted to Win32.cs
[Ide] Do not show all files in solution folders.

Addresses bug 19704 - Exception displayed if show all files options is active and user tries to create new folder in newly added solution.

Showing all files in solution files can lead to confusing behaviour when a project is shown as being a child of a solution folder when, in fact, it is not. Solution folders should only show projects that have been explicitly added to that folder.
Updated reference to md-addins
Updated reference to md-addins
Updated reference to md-addins
Merge pull request #585 from sgmunn/fixbug-19074

[Ide] Do not show all files in solution folders.
Merge pull request #583 from dipamchang/GetApplications

[WinPlat] Implementation of GetApplication for Windows Platform
Fixed 'Bug 20546 - Typing "///" on nested class does not create
Summary block'.
add MonoDevelop.Debugger.Gdb so that it becomes part of the tarball
Merge pull request #586 from tpokorra/fixTarBallDebuggerGdbMissing

add MonoDevelop.Debugger.Gdb so that it becomes part of the tarball
Updated references to xwt, md-addins
Updated references to xwt, md-addins
[configure.cs] Try `/usr/bin/git` before falling back to `git`.
Merge pull request #579 from rneatherway/duplicate-sig-keyword

F# syntax highlighting had duplicate 'sig' keyword
Merge pull request #588 from alexrp/master

[configure.cs] Try `/usr/bin/git` before falling back to `git`.
[main] Don't silence the invocation of configure.exe to generate buildinfo.
Merge pull request #589 from alexrp/master

[main] Don't silence the invocation of configure.exe to generate buildinfo.