MFC r216697:

MFC r216697:

Fix typo (Pashka -> Paskha).

MFC r217025:

Fix typo: March -> September.

MFC r218471:

Fix Paskha and Paskha-specific holidays.

MFC r218473:

Always convert Paskha day from Julian (old) to Gregorian (new)
style by adding 13 days.  Bug introduced in 1.13 revision.

MFC r218771:

Fix the beginning day of the Great Lent, it starts on Monday
for 7 weeks before Paskha.
Fix the Exaltation of the Holy Cross day.
Add more Twelve holidays (dvunadesyatye prazdniki).

MFC r218797:

Replace hard-coded value by Julian2Gregorian converter function.

MFC r219174:

Fix beginning day of the Carnival.

MFC r219175:

Expand the name of Palm Sunday holiday with more canonical Entry
of the Lord into Jerusalem.
Merge the Pentecost and Trinity Sunday holidays, they are synonyms.
Remove Body of Christ day, nonexistent holiday for Orthodox Church.
Fix typo in the name of Ioann The Baptist, introduced in previous
commit.

git-svn-id: svn://svn.freebsd.org/base/stable/8@219569 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f