Release 1.1

Close out the following:

#14 Deal with spaces in bookmark names & paths bug
#5 Improve support for outputting paths in different formats enhancement
#4 Add support for keeping track of when a bookmark was last accessed enhancement
#3 wd sometimes gets the date of a bookmark wrong bug
#2 wd should read options from the environment enhancement
#1 wd should have some automated testing enhancement

Initial

Initial release of wd.

Functionality is at a level where it's useful to me, at least.