remove global.dat from the repository
ignore `uncommon` parameter

The CLDR removed commonlyUsed information about timezone aliases:
http://www.unicode.org/reports/tr35/tr35-29.html#Timezone_Names
(search for "commonlyUsed")
changes in CLDR data
sometimes US and DE week numbers differ
Thaana locale removed from cldr; use Bangladesh
datetime format changed in cldr
handle 'at' value from en date format
currency format changed for Spanish
remove global.dat when cleaning cldr
skip alias entries
remove duplicated test

how did this ever pass? two tests with same setup and different
assertion?!
more changes in the french data
czech data changed; update the test
fix expected values for timezone names

commonly-used names no longer available
Merge pull request #12 from mgax/fix-tests

Fix tests