return . for blank assets that don't end in trailing slash
0.4.7
building docs
Merge pull request #306 from doowb/master

Returning `.` for `assets` when blank.
Keeping options.partials intact

Keeping `options.partials` intact so they can be used in things
like helpers.
Merge pull request #308 from doowb/master

Keeping options.partials intact
Merge branch 'github.com/master'

Conflicts:
	README.md
Merge branch 'github.com/master'