Visual D 0.49.2
Changes from 0.49.1:
- VS2013/VS2015: VC projects broken in 0.49.1 due to unsupported msbuild variable
- visualdproj: fixed additional options not passed to single file compilation
- VS2015: workaround VS not correctly updating extension caches after uninstallation
- bugzilla 19826: visualdproj projects created for LDC still use DMD