Improve DMD release versioning

1) Determine most recent release ("oldDMD") from gitTag.
2) Insert release version after cloning repository.
Minor Fix

Discard newline character.
Merge pull request #86 from AndrewEdwards/master

Improve versioning
Revert "Improve versioning"
Merge pull request #87 from D-Programming-Language/revert-86-master

Revert "Improve versioning"
Update build_all.d

Improve release versioning and dynamically detect previous DMD release.
Update Makefile

Package from locally generated osx archive when available, otherwise download form ftp.
Update common.d

madeVersion is deprecated using fileAttributes instead.
Merge pull request #88 from AndrewEdwards/master

Improve versioning