Fix bug where suggested paths and all found dirs are the same list, leading to bad python path suggestions.
Merge pull request #1754 from diegosarmentero/master

open files from explorer with enter key
Merge pull request #1756 from diegosarmentero/master

margin line fixed
Merge pull request #1757 from diegosarmentero/master

fixed loading errors tab
Merge pull request #1758 from diegosarmentero/master

some code improves and pep8
Merge pull request #1759 from diegosarmentero/master

indentation guide
Merge pull request #1760 from diegosarmentero/master

minor improve in indentation guide
Merge pull request #1761 from diegosarmentero/master

Show/hide explorer tabs
Merge pull request #1762 from diegosarmentero/master

several improves in locator and files handler
Merge pull request #1763 from diegosarmentero/master

expand file combo with ctrl+tab too
Merge pull request #1743 from arlsr/upstream

Fix bug where suggested paths and all found dirs are the same list
Added activation to plugins manager
Merge pull request #1764 from perrito666/master

Added activation to plugins manager
Fixing typo on requirements.txt
Merge pull request #1765 from Siecje/requirements

Fixing Typo on 'requirements.txt'
suggestion to release Ninja-IDE under GPLv3+ instead of simply GPLv3
Fix 1606, QSS small fix
Fix 1737, QSS small fix
Merge pull request #1767 from mribeirodantas/master

suggestion to release Ninja-IDE under GPLv3+ instead of simply GPLv3
Merge pull request #1768 from juancarlospaco/fix/1606

[QSS] Fix 1606