Merge branch 'fix1096' of git://github.com/dvvrd/qreal
Merge branch 'fix1139' of git://github.com/dvvrd/qreal
Merge branch 'fix1144' of git://github.com/dvvrd/qreal
Merge branch 'fix1024' of git://github.com/dvvrd/qreal
Merge branch 'fix1155' of git://github.com/dvvrd/qreal
Merge branch 'fix1141' of git://github.com/dvvrd/qreal
Merge branch 'master' of https://github.com/qreal/qreal
Merge pull request #1193 from dvvrd/touch

Touch fixes for geek picnic
Fixed #680
Fixed #1194 and segfault when dragging element from user palette
Removed brackets from element name when creating it by dragging from the palette
Merge branch 'master' of https://github.com/qreal/qreal
Merge branch 'fix680' of git://github.com/dvvrd/qreal
Merge pull request #1195 from dvvrd/fix680

Groups as root diagrams and explosion targets
Fixed time-to-time groups nullifying in metamodel
Merge pull request #1196 from dvvrd/robots

Fixed diagram node group creation in TRIK version
Merge branch 'master' of https://github.com/qreal/qreal
experiment with Travis build matrix to parallelize build
an attempt to make matrix with not only one row
seems travis does not allow to add dimensions to matrix so build environment shall be specified by hand