Tests Fix,Schemes Sorting,Language Sorting

- Tests Fix for 3 DeprecationWarning
- Schemes Sorting and Alternating Row Colors
- Language Sorting and Alternating Row Colors
- Schemes can find upper case schemes, eg File.COLOR
- Language can find upper case language, eg File.QM
- Use with open(file) as f instead of just open(file) on dialogs
- A la grande le puse cuca
- Dont break Traceback text by line wrap
- Add GPL Licence notice where missing
- Dont need to import SIGNAL anymore on dialogs
SIGNAL is back
Just one more was missing SIGNAL
loading migration list from migration checker
Merge pull request #1480 from diegosarmentero/master

Ninja Editor Checkers with updates in explorer tabs lists complete
Merge pull request #1476 from juancarlospaco/master

Tests Fix,Schemes Sorting,Language Sorting
QTableWidget with Checkable Header to select all Items
Update ninja_dark.qss
Fixes from Peer Review,Table Search by query string
Kill Table Search by query string
Merge pull request #1484 from juancarlospaco/master

QTableWidget with Checkable Header
Merge pull request #1488 from diegosarmentero/locator

StatusBar completely refactored
Merge pull request #1489 from diegosarmentero/locator

first iteration with locator and saving settings
Merge pull request #1490 from diegosarmentero/locator

locator/settings iteration2
Merge remote-tracking branch 'upstream/master' into locator