[PCL]: Add new `System.Runtime.InteropServices.WindowsRuntime' APIs a…

…nd Facade Assembly.

This is a squashed cherry-pick of commits 37af8b7, 7d23865, 1908e1d and d0d5f5a, which
fixes problems with the MS Rx NuGet package.

[runtime] Fix the osx mavericks stack size calculation in sgen too.

Revert my last two commits; these would require a new cecil.

This reverts commits c29ac46
and b31c948.

Bump ikvm again to only pick-up my single commit.

I created a new 'mono-master' branch in ivkm-fork, which is based
at the previous ikvm commit, then cherry-picked my single commit.

Apparently, there are API changes in IVKM which prevent it from
being applied cleanly.

Include all of Martin's spec file changes

Bump version number to 3.2.0

Put the unbox_trampolines table into the .text segment instead of .ro…

…data on mt since it contains code.

[runtime]On install, symlink mono to the right binary.

Mark MonoCMethod (runtime subclass of ConstructorInfo) as serializable. 

Fixes mono#12611

Fix the check in bf9c7dc.

The C preprocessor sucks.