Merge pull request #407 from ColdenCullen/master

Added glob support to copyFiles.
Various small fixes

- fix computeBuildID for --compiler=/my/path;
- dub compiled with ldc tried to invoke ldc as default binary instead of ldc2;
- dmd: Don't generate anything;
- gdc: Do not link, only generate an object;
Merge pull request #381 from Geod24/ldc-support

Various small fixes