Added time variable generation for TRIK qts
Prerendering of svg files
changed all double data types to qreal (except thirdparty code)
Merge pull request #1321 from dvvrd/trik-time

Stopwatch for TRIK qts
Merge pull request #1322 from qreal/svg-prerendering

Prerendering of svg files
Merge branch 'master' of https://github.com/qreal/qreal into textLanguage