Fix #7196, composer manager doesn't close when showing a chosen composer

- Fix zoom-to-full when composer window is shown
Fix: emit committedFeaturesAdded and committedFeaturesRemoved
Add New and Manager actions to new Composer menu in composer
Add binding to iface for action to show composer manager
Run prepare-commit on qgscomposer.cpp
Merge pull request #432 from matthias-kuhn/fix-vector-layer-signals

Fix: emit committedFeaturesAdded and committedFeaturesRemoved
Fix WFS loading with geoserver layers
Add Print Composers submenu to new Composer menu in composer

- Remove QgisApp::instance() usage in favor of already available passed in pointer to QgisApp
different icons for GPS importer and Create new GPX layer (fix #6860)
Make "Layer - New" accesible from QgsInterface, update GPS importer
plugin (fix #7202)
fix debian builds
Protect point and line pattern symbol layer from eating too much memory
debian packaging update
WGIS WFS Server : GeoJSON Fid has to be a String

Adding "\"" befaore and after the fid for the GeoJSOn format.
Followup to be3bad3

- Simpler means of bringing composer windows to front, if manager dialog is going to be closed
Fix duplication of main app's Window and Help menu to composers for Mac