Fix for moon phase and direction, Fix for IsMoonNew and IsMoonFull where direction is 0

The moon pahse and direction have been checked with online vanadiel
clocks and the ingame command /clock.

The fix for IsMoonFull and IsMoonNew check if direction is 0 (neither
waxing nor waning) the phase are 0 (Moon New) or 100 (Moon Full)
Fix typo in getMoonDirection
Merge pull request #139 from santssoft/vanatime

Fix for moon phase and direction, Fix for IsMoonNew and IsMoonFull where direction is 0