added version check
added requiredVersion.h
Merge branch 'fsharp-generator' of https://github.com/qreal/qreal
Merge branch 'master' of https://github.com/qreal/qreal
fixed 'versions'
Merge branch 'master' of https://github.com/qreal/qreal into versions

Conflicts:
	plugins/robots/utils/include/utils/tcpRobotCommunicator.h
	plugins/robots/utils/src/tcpRobotCommunicator.cpp
added translation lines into utils/utils_ru.ts
Merge branch 'master' of https://github.com/qreal/qreal
Merge branch 'versions' of git://github.com/Anna-/qreal
Some small styleguide and translations fixes