Update to CLDR 26

* http://cldr.unicode.org/index/downloads/cldr-26
* Updated a test to reflect a spelling change happened about
  time unit.
* Removed entries from LocalNamesEn.php when identical to CLDR.
  13 local names differing from CLDR's, as well as the other
  languages, are left to follow-ups.

Change-Id: I2044086a1771e24d3ee51ebc733722a25b34e6ba