Fix the cmake build
Merge pull request #535 from xyz32/fix-cmake-build

Fix the cmake build
Do not use SessionsManager::getWindowsManager() if not needed
Shift+Enter support in address and search bar, references #436
Added on-demand plugins support. #534
Merge pull request #539 from rejdi/ondemand-plugins

Added on-demand plugins support. #534
Cleanup
Use more familiar look for not loaded plugins and draw border when hovered, references #330
Accept only left mouse button
Update menu after moving from boolean to string based enumeration, references #541
Update translations from Transifex
Take advantage of QWidget::window()
Set default character encoding using options
Limit size of tooltips plus minor fixes
Use static NetworkManager in Content Blocking
Use more native way to copy history while cloning tab, references #540
Simplify
Fix spacing typo
Add a 'Hide' button to the exit warning dialog
Allow to reload while tab dialogs are visible