Merge branch 'travis'
init mbstring encoding PHP 5.6+ compatible way
fix test affected by APP_CHARSET
add Language::isUTF8
Added $prj_id to Time_Tracking::getAssocCategories() call in customer stats report
Fix error with editing custom field
Added date picker back to date fields
fix typo
require full paths
installer: try using local timezone first
restore redirect if setup is configured
installer: try detecting first day of week
composer: provide ext-gettext in php-gettext package
make tests work without gettext native ext
phpcs: exclude config dir
phpcs: code style fixes
init Date_Helper test
add more Date_Helper tests. mark private methods invisible
fix date test arguments
use portable PEAR DB quoting function instead of mysql one