Fixed interpreter parsing fields when it is not needed
Made analyzer forget nodes for properties that are reparsed in case of parser cache miss, so they are no longer reachable from parser cache and there is no point to store them further
Merge pull request #1408 from qreal/memleak-fix

Interpreter memleak fix
Merge pull request #1407 from qreal/interpreter-performance-fix

Fixed interpreter parsing fields when it is not needed
New icons
Merge pull request #1409 from qreal/icons

New icons
Merge branch 'master' of https://github.com/qreal/qreal into 3.0.0-docs