Added element titles showing when selected
build fix in metamodel.dll
Merge pull request #3 from DmitriyChernov/buildFixMetamodel

build fix in metamodel.dll
Added default empty value to edge condition
Some documentation fixes:
Fixed pictires transparency;
Refreshed blocks screenshots;
Added wait blocks descriptions
Fixed terribelly large sensor rereading interval
Version changed to 2.0.3;
Documentation version and year scripting fixes;
Fixed nxt-tools installer wrong target directory
Added forgotten changelog point
Finally fixed help url path
Added logging into file
Merge branch 'robots' of https://github.com/dvvrd/qreal into robots
Finally fixed 2D model touch sensor collision detection
Fixed segfault when sensor not configured
Syntactic documentation correction
Fixed usability testing asseration fault
d2 scene grid update
Merge branch 'robots' of https://github.com/dvvrd/qreal into labyrinth
d2scene grid update