Merge pull request #7 from rainers/master

transfer to dlang.org
	- fixed sc.ini evaluation, added support for sections [Environment32] and [Environment32]
	- link dependencies can now also be monitored for the 32-bit MS linker
	- added VCINSTALLDIR to the list of available macros
	- added different options for executable and librarie search paths to be used for Win32/x64
	- x64: linker settings from sc.ini can be overwritten
	- x64: linker no longer invoked through dmd
dparser now used by default if installed