Removed "void" from functions that take no parameters, removed a few
"get" prefixes, etc.

Handle modified 'status' formatting (starting at column 8).

Details: Use a global model for nicknames that is shared by all dialogs to solve the updating  problems. Make p4 plugin submit work again. Force a submit prompt in case of shutdown or editor close (as opposed to user clickling on "Submit").

Fixes: Add common configuration to the VCSA base plugin; submit message check script and user name configuration.                                           Details: Extend submit editor widget by configureable fields. Use them in the VCS base submit editor to specify users, provide completion and selection dialog for them.

Fixes: Introduce a cpp settingspage containing file naming conventions (lower case and suffixes). Reorder VCS settings pages.

Task: 241959, 248085

RevBy: Optics/Naming checked by con
Details: Give IOptionPage an id() to differentiate from trName(). Make showOptionsDialog return a bool (applied) and give it an optional parent. Change Cpp and form class wizards, give them a Configure... button to change those settings.

Fixes: Add a combo for diff file browsing, bring diff editors to front, exclude qconfig.pri from files examined by p4.

Task: 234842

Task:     - 244529
Details:  - It just doesn't work in Mac menus (at least not with Qt, but
I suspect it's some Mac thingy), so just don't do it.

Task:     -
RevBy:    Thorbjorn
AutoTest: -

in place
RevBy:   con

    Details:  setCurrentEditor was sudddenly private

Details: Also remove unused change number dialog.

Many singletons have their own instance() method, in which case there is
no need to use ICore::instance() to get access to them.

replace ExtensionSystem::PluginManager::instance()->getObject<Core::ICore>() by Core::ICore::instance()

forward declaration is sufficient.

Details:  - Naming convention

Details:  - Conform to naming convention

The previous interface wasn't sufficient to properly support the Apply
button, since it didn't separate applying the changes from the cleanup
phase.

Designer settings pages still need some fixing.

Fixes Apply button causing problems for certain plugins, for example the
QuickOpen.

Details:  - To make it conform to naming convention.

Fixes: Random enabling of submit/diff buttons when switching contexts (viewing diffs) from the submit editor

Details: Register actions directly

Details:  in all pluginspecs.