kwalletmanager ui refactor

[Valentin Rusu]

Hello,

Lots of us are frequently using kwalletmanager to get/store the secrets for 
the ever extending sensitive information. We click it's icon to pop the main 
window, then double click the main wallet icon to pop another window, that 
will eventually go to the second display (that's my case). Perhaps you put 
aside a quick thought that this should be changed, but return to the task 
under hand. And then forget about this until you'll next need to use 
kwalletmanager. :-)

During last days I finally sat down and did a ui-refactor and now 
kwalletmanager handles all the wallets inside a single, KPageWidget based 
design. A screen capture is far better than a hundred words so here it is:
http://imgur.com/MD3GDxO

As you may see, the ancien kwalleteditor window moved inside a 
KPageWidgetItem. All the legacy code was left untouched. Only slight 
adjustements were done, to allow ui objects reference changes. I tried to 
preserve as much code history as possible. This also prevents regressions.

The sources layout was also slightly changed to be more KF5 compliant. There's 
now a src subdirectory that has a manager and a konfigurator subdirectory.

All this refactoring was done in a dedicated branch named "ui-refactor" I just 
pushed to the main repository. The application is fully functional and you can 
just checkout that branch, compile and replace your current kwalletmanager ;-)

Next things to be done are:
- review these changes - here I need your precious feedback
- implementing features you may suggest
- update the handbook
- merge the code to the main branch when decided

Thanks,

PS I'd like to say a big *thank you* to the *gammaray* team who did a really 
great tool that showed very handy when analysing existing ui layout.

-- 
Valentin Rusu (vrusu)
IRC: valir
KSecretsService (aka KSecretService, KWallet replacement)