tweaked doc build location.
added link to docs
second try at getting markdown right
fixed tranpose error is Hash_table implementation
entirely PEP8 white space fixes
pep8 fixes
pep8 fixes
added `track` as a property of `Point`
set up basic testing using nose
Merge remote-tracking branch 'github/master'
first attempt at getting travis working
minor tweak to .travis.yml
more changes to .travis.yml to get dependencies right
removed Point.__hash__ which was taking ~10% of run time
modified how the recursive linking functoin is called
added second tracking test
fixed error in linking logic that did not properly include penalty for not
making the maximum number of linkages.
changed the from list-> deque for the recursive linker
changed how null links are handled

Conflicts:
	trackpy/tracking.py
tweaked tests