SOS-1820 remove UpgradeGroup. Should be split into upgradeLayoutSet and upgradeLayout
SOS-1820 Add UpgradeLayout, UpgradeLayoutSet, UpgradeTheme
SOS-1820 Sort
SOS-1820 SF
LPS-41113 Fix compile
LPS-41114
Update SO releng.properties
pootle exported keys [by Liferay translation manager v.2.6.1]
ant build-lang