Add Dub.overrideSearchPath to define a single and only path that is searched for packages.
Add support for execution result callbacks in the build generator.
Add a basic dustmite command.
Avoid scanning for local packages for "dub dustmite --test-package".
Avoid copying compiler output files and copy *all* dependencies for "dub dustmite".
Fix matching linker/program results in dustmite mode and output match status messages.
Only force dustmite match when an explicit failing exit code was requested.
Dustmite: Force a match when a command failed, but the output regex matched.
Another improvement for the dustmite output match logic.
Add script for building an RPM package. See #245.

Thanks @etcimon for the initial version of the RPM spec file.
Implemented ~>1.3.5 version specifier similar to what rubygems are doing.
Prepend an explicit .\ when executing executables in relative paths on Windows, too.

Sometimes the wrong executable was picked up for "dub run" or "dub test".
Improve wording.
Fix compilation on 64-bit systems.
Add a TravisCI recipe.
Add build status badge.
Use up to date DUB release.
Use the cURL-less configuration for unit testing to avoid linker errors.
Following rubygems version specification for approximate version more closely.
Merge branch '0.9.21'