gitignore update

.gitignore

@@ -1,10 +1,29 @@
 HGR.Mobile.Droid.ImageLoading/bin
 HGR.Mobile.Droid.ImageLoading/obj
-*.userprefs
-FFImageLoading.Common/bin
-FFImageLoading.Common/obj
-FFImageLoading.Droid/bin
-FFImageLoading.Droid/obj
-FFImageLoading.Touch/bin
-FFImageLoading.Touch/obj
+
 *.nupkg
+
+## Xamarin stuff
+Components
+[Pp]ackages
+*.userprefs
+Resource.designer.cs
+
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+
+# User-specific files
+*.suo
+*.user
+*.sln.docstates
+*.apk
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+x64/
+build/
+bld/
+[Bb]in/
+[Oo]bj/