Merge pull request #2 from bear24rw/master

Various fixes
Updated section on bookmark file syntax
Credited Max Thrun as a contributor
Add quoting
Add bookmark relative paths
tab completion adds name of current directory if adding a bookmark
Merge branch 'master' of https://github.com/resultsreturned/to
Merge pull request #4 from Patagonicus/relative

Add bookmark relative paths
Credited Phillip Adolf in README.md
Merge remote-tracking branch 'patagonicus/master'

Conflicts:
	to.sh
separated unaliasing into _to_dir
separated path parsing functions into _to_path_head and _to_path_tail
Fixed Philipp Adolph's name
buggy draft of relative path tab completion
tab completion for relative paths
removed test code
cleaned up comments
Fixed tab completion + documentation
refined tab completion for -r
rephrased -r documentation