Check Ctrl manually on activateUrl signal

Urls openes by click after some changes in qtermwidget https://github.com/qterminal/qtermwidget/pull/20. Added manually ctrl check as suggested in https://github.com/qterminal/qterminal/pull/69
Merge pull request #70 from Ilya87/master

Qt5 additional dependency and fix for issue #63
Merge pull request #75 from kulti/patch-3

Check Ctrl manually on activateUrl signal
fixed #74 Zoom reset option resets font back to Monospace
fixed #65 Typo in QTerminal Properties window
add german translation
fix translation of termwidget context menu
Merge pull request #81 from dbluelle/master

add german translation and fix translation of termwidget context menu
fixed #80 Wronge state on startup
qctions refactored a bit; copy/paste etc. shortcuts work in subterminals finally
fixed translation (some spelling, some inconsistencies, some bad
wording)
used other applications to determine common practice for some of the terms
Desktop icon theme support
Use icons from current desktop theme (Qt functionality)
Reformat icons.qrc into theme format and fallback to the provided theme
if no system theme present in main.cpp
Add more action icons according to the XDG Icon Naming Specification
Updated translation.
Russian translation improvements.
CMakeLists.txt cleanup
Add an INSTALL file
Update README
Update AUTHORS
Add an initial CONTRIBUTING document
Release 0.6.0