makes option base usable

so you can have several (different) bower.json-files in multiple
directories
Passing the targetdir to bower

so that bower also knows where you want your packages to be.
Added override bower dir as an options.
Updated README
Fixed JSHint errors

Fixed JSHint errors
Fixed small typo

Typo in task fixed
Update wrench dependency. Fixes #104

This fixes a bug where trying to copy a bower linked package throws an error
Add filtering options via wrench
Merge remote-tracking branch 'upstream1/devel' into devel
Edited gitignore
Merge remote-tracking branch 'upstream2/devel' into devel
Merge remote-tracking branch 'upstream3/patch-3' into devel
Update bunch of dependencies
Update package version and description
Edited some comments