Reversed GCC update to 4.9.0 because it miscompiles Qt5 Javascript Engine, back to 4.8.2
update qt5 modules
package qtbase: fixed generation of cmake configurations regarding plugin configuration paths
Merge commit 'ebc859ef6c714792c383b3be39e809e7e04bb017' into my

* commit 'ebc859ef6c714792c383b3be39e809e7e04bb017':
  update qt5 modules