Updated changelog, fixed bugs, added minor features

* local-time/TODO
	- Added a bunch of todo items

* local-time/ChangeLog
	- Added mine and Sekissov's contributions

* local-time/local-time-test.lisp
	- reset-tests now clears the correct hash variable
	- tests updated to include Sekissov's changes

* local-time/local-time.lisp
	- Added month and day names, as well as julian date functions

* local-time/CREDITS
	- Added Sekissov

* local-time/README
	- Removed warning about parse-timestring
	- Added documentation for julian date functions