Visual D v0.3.38 beta 3

Due to a hardware failure with complete data loss I had to rebuild my development environment from scratch, including some of the compiler/druntime patches for the precise GC that are needed by Visual D. So please be warned that there might be some regressions introduced by not reproducing exactly the same code as in earlier releases-

Changes from 0.3.38beta2:

• updated SDK conversion for VS2013 and Windws SDK 8.1
• changed some default colors when using dark theme in VS 2012+ (restart required)
• added Windows SDK 8.0/8.1 detection
• fixed bad "\n" in default x64 library search path
• x64 executable and library search path were not correctly saved for next VS start
• improve project automation to mute NuGet (still empty project pretended)
• DParser updated to aBothe/D_Parser@901b47d