gdc getting more rox

[Iain Buclaw]

This month seems to be bug squashing month for GDC.  Down to just 
two common bugs in the commented out tests in the testsuite.

As of the most recent commit, I've even started seeing 
std.parallelism unittests passing without a hitch on Linux 
32/64bit.


Next focus on unittest fixes to come...

https://github.com/D-Programming-GDC/GDC/commit/46084b05f9747fbe92a1dfe1304b6a652e03c385