Finish 1.0
Add occurrence highlighter mode
Make use of the new smart backspace mode
fix pep8 errors
Add extended mode selection.

Particularly useful for cobol since this mode allow to select entire word, even if there is a dash in the middle ( FOO-BAR -> FOO, - and BAR will be selected by a double click).
Bump version to 1.1.dev
Goto mode: fix conflict with extended word selection (ctrl+click vs ctrl+double click)
Add global checker panel
Use NotRunning instead of NotConnected
Fix pep8 warnings
Bump version and requirements
Finish 1.1