Replacement of getexecutingassembly

In Windows Store getexecutingassembly is not exposed, since it is not
guranteed to giveproper answers e.g. in method inlining - hence deriving
assembly from a well-known type.
Merge pull request #186 from flq/pcl_touchup

Replacement of getexecutingassembly
Update README

Turned "downloads area" into link to releases page
Removed install albacore instruction
Removed submodule init instruction (submodule pulled in 2ab0d50b59)
Updated open solution instruction to VS2012 as sln file is 2012
Merge pull request #187 from sghill/readme-updates

Update README
Update README.markdown