update hijri-monthes.json due to Iran's 1392 official calendar (http://calendar.ut.ac.ir/Fa/Tyear/Data/Full-1392.pdf)
update plugins due to Iran's 1392 official calendar
drafts for VcsTagEvent
weekcal: show horizontal lines if grid is enabled
rename persian plugins
update last modified dates of plugins
rename plugins in conf/defaults/*/core.conf
changes in iran-jalali.db
cleaning in iran-ancient.db
improvement in Active/Inactive Calendars UI
fixes, cleaning and improvements in event code base
disable incomplete class in rules/common.py
add WeekMonthEventRule
remove useless __all__ from __init__.py files
cleaning in ui_gtk/event/yearly.py
add VcsTagEventGroup (hg short stat/diff is not implemented yet)
weekcal toolbar: disable backward4 and forward4 items by default
fix event sorting in DayOccurrenceView
move function getDayOccurrenceData