Setup Dialog: Fix widget size issue

in advanced settings
Setup Dialog: Fix widget size issue (2)
Raise setup wizard
Add "Reset Folder" option to status dialog

to recover from invalid databases. Features
a big fat warning.
[tx-robot] updated from transifex
String whitespace fixes
[tx-robot] updated from transifex
More whitespace changes
[tx-robot] updated from transifex
[tx-robot] updated from transifex
[tx-robot] updated from transifex
ChangeLog
Minor theme changes
[tx-robot] updated from transifex
[tx-robot] updated from transifex
Remove obsolete code
[tx-robot] updated from transifex
Fix Dialog behavior

- Fix proxy dialog being callable multiple times
- Use smart pointers in more places
- _owncloudSetupWizard was guarded by a smart pointer,
  this needs to be accounted for in other code pathes.
  Fixes Setup dialog not showing up when left-clicking
  on unconfigured instances on Windows.
Merge branch '1.3'