ticket #1507 - Solve a bug to get module's name with cmdline action (ticket 1507).

The ticket #1507 seems to be caused by an empty return of function jApp::getCurrentModule().
Comparing the jCoordinator class in jelix 1.5 and 1.4, I see the jContext::push(...) used in 1.4 in process() before getController() has been deleted and not replaced by jApp::pushCurrentModule(...) as in other classes.