2to3 updates
use stand-alone functions for holidays

simplify nth day of week calc

add ability to do last $weekday of month

Add tests for jewish holidays

Fix thanksgiving and add Franksgiving
simpler gregorian legal date checking

Add it for julian
add py 3 support, bump version

add holidays info to readme
first draft of babylonian
add babylonian tests
Add to_jd method
babylon helper functions
begin adding intercalarys
Add intercalary (leap month) patterns
formatting and variable names
Use ephem to calculate proleptic babylonian
Update ruler years
babylon: utils for ephemeris and era calculating
move intercalation() to data

Clean up metonic functions
fix regnal year
get current month
Move debug stuff to test dir for now
progress on rising/setting functions
Move to package format