Introduced current symbol info widget; Fixed array completion

 * Guanako: Introduce current symbol stack
 * Guanako: Array handling fixed
 * Valama: Current symbol widget
Merge branch 'master' of https://github.com/Valama/valama

Conflicts:
	cmake/project.cmake
Merge branch 'master' of https://github.com/Valama/valama
Guanako: Working on arrays vs current symbol fix. Sorry for merge screw-up -.-