Remove multiple Version2 definition

Remove Version2 variable definition when calling dinstaller.nsi. Already defined in dinstaller.nsi.
Merge pull request #76 from AndrewEdwards/master

Remove multiple Version2 definition
Change gcc-multilib to recommends in deb-packages

The gcc-multilib package is not required for dmd to work on 64-bit
systems when 32-bit software is not going to be built. Changing from
'Depends' to 'Recommends' still suggest a strong connection but it will
be possible to choose not to install gcc-multilib.
Merge pull request #77 from andron/gccmultilib

Change gcc-multilib to recommends in deb-packages
github changed their raw URLs
Merge pull request #78 from MartinNowak/fix_raw_github_url

github changed their raw URLs
Revert #76: fix applied to dinstaller.nsi directly

1) Revert effects of pull #76. Problem properly addressed in dinstaller.nsi.
2) Build with current stable release. 
3) Remove work around for missing FreeBSD specific dmd.conf. No longer need after v2.065-b1.
Update dinstaller.nsi

Ensure Version2 not double defined when used called from script or passed in via command line.
Merge pull request #79 from AndrewEdwards/master

Update build script and dinstaller.nsi