Removed unnecessary assembly redirect for Mono.Cairo

This was originally added because the GTK# installer  didn't ship Mono.Cairo 4.0 on Windows.
This is no longer the case, so the assembly redirect can be removed.
[Ide] Initial support for sliding pads on windows
[Ide] Fix focus issues when showing pads as NSWindow children.

Work around the focus issues by switching to WindowType.Popup and showing the window
*after* we add child. However, realizing the window before it's shown causes it to
appear at the display origin and then get moved into the desired location when we
show it. This causes a highly visible flickering issue. There isn't any apparent want
to prevent this, so we're masking the flickering using an opacity trick.
Revert "[Ide] Fix focus issues when showing pads as NSWindow children."

This reverts commit 8019759c829d5ed345f48c655622a6c838270d34.
Set TypeHint to Toolbar *before* calling AddChildWindow().

With the Toolbar type hint, GdkQuartzWindow returns NO from
-(BOOL)canBecomeMainWindow and YES from -(BOOL)canBecomeKeyWindow
Merge remote-tracking branch 'origin/master' into sliding-win-pads
Fix test failure when gtk-sharp2 is not a GAC package

When gtk-sharp-2.0 is loaded from pkg-config an additional "Package" tag is written to the csproj.
We need to strip this out or the XML won't match the expectation and the test would fail.
Fixed 'Bug 22977 - Unable to remove custom code template'.
Merge pull request #642 from akoeplinger/master

Fix test failure when gtk-sharp2 is not a GAC package
Updated reference to md-addins
[VCS] Don't auto-add Hidden|DontPersist files
Merge pull request #638 from akoeplinger/remove-assembly-redirect

Removed unnecessary assembly redirect for Mono.Cairo
[Ide] Fixed type system load issue.
Bundle render.cs, not render.exe, with MacOS dmg builder tools

Since the Makefile has a rule for render.exe, there's no real
point to bundling the assembly instead of the source
Always regenerate buildinfo when making a tarball

(buildinfo is cached otherwise)
Forcibly remove all assemblies from generated tarball, for source-only build.
[Ide] Made the load action lock more fine grained.
[Ide] Try to fix type system issue.
[Ide] Ensure that load actions aren't run on the lazy project loader.
Updated reference to md-addins