Filter last opened path relative to project
Filter last opened path relative to project

Previously the full paths were compared which could cause duplicates
because of symlinks or case insensitive filesystems.

Closes #28

viddo/fuzzy-finder,Kerruba/fuzzy-finder,gvanderest/fuzzy-finder,Spy-Seth/fuzzy-finder,segiddins/fuzzy-finder,segiddins/fuzzy-finder,gvanderest/fuzzy-finder,atom/fuzzy-finder,nielsAD/fuzzy-finder,pombredanne/fuzzy-finder,pombredanne/fuzzy-finder,Kerruba/fuzzy-finder,toshi-saito/fuzzy-finder,Spy-Seth/fuzzy-finder,viddo/fuzzy-finder,nielsAD/fuzzy-finder