Update CSharp.gitignore

Incorporate additions from: http://stackoverflow.com/questions/2143956/gitignore-for-visual-studio-projects-and-solutions

CSharp.gitignore

@@ -3,6 +3,7 @@
 [Oo]bj/
 
 # mstest test results
+TestResults/
 [Tt]est[Rr]esult*/
 
 ## Ignore Visual Studio temporary files, build results, and
@@ -14,14 +15,14 @@
 *.sln.docstates
 
 # Build results
-[Dd]ebug/
-[Rr]elease/
+[Dd]ebug*/
+[Rr]elease*/
 x64/
 *_i.c
 *_p.c
 *.ilk
 *.meta
-*.obj
+*.[Oo]bj
 *.pch
 *.pdb
 *.pgc
@@ -36,6 +37,7 @@ x64/
 *.vspscc
 *.vssscc
 .builds
+*.unsuccessfulbuild
 
 # Visual C++ cache files
 ipch/
@@ -54,6 +56,7 @@ ipch/
 
 # ReSharper is a .NET coding add-in
 _ReSharper*/
+*.ReSharper.user
 
 # NCrunch
 *.ncrunch*
@@ -91,15 +94,27 @@ AppPackages/
 # RIA/Silverlight projects
 Generated_Code/
 
+#MonoDevelop
+*.pidb
+*.userprefs
+
 # Others
-*.Cache
+*.[Cc]ache
 ClientBin/
 [Ss]tyle[Cc]op.*
 ~$*
 *.dbmdl
+Ankh.NoLoad
+*.sass-cache
+.svn/
 
 # Backup & report files from converting an old project file to a newer
 # Visual Studio version. Backup files are not needed, because we have git ;-)
 _UpgradeReport_Files/
 Backup*/
 UpgradeLog*.XML
+
+#OS meta files + shortcut links
+[Tt]humbs.db
+*.DS_Store
+*.lnk