Merge tag '1.4.6' into develop

Release v1.4.6
cleanup
update
Merge branch 'develop' of ssh://github.com/dreamfactorysoftware/lib-php-common-yii into develop
exclude update.log
removed prior addition to .gitignore
composer update
fix incorrect version of common lib in composer and updated
update yii framework dependency
composer update
composer update
Merge branch 'release/1.5.0'