[avidemux/f24] (11 commits) ...Really fix building with GCC6, patch provided by Dan Horák <dan@danny.cz>

Summary of changes: 52a92e7... Bump for rebuild in new infra. (*) df6f9cc... Add GCC 6 operator patch. (*) dac8756... Update gcc 6 patch. (*) 7dcb568... More tweaks to the gcc 6 patch. (*) ef437c1... More gcc 6 fixes. (*) 4940e19... More gcc 6 fixes. (*) c7abbb7... Attempt to fix narrowing conversion issue. (*) 337c4f9... Attempt to fix narrowing conversion issue. (*) 794d167... Try try again... (*) 2dee0bb... Try again. (*) 9209640... Really fix building with GCC6, patch provided by Dan Horák (*) (*) This commit already existed in another branch; no separate mail sent