Merge pull request #31 from yupe/f0439211f7463a94593851969a4342aa8ef8e756

UPD: merge with yupe/master
Merge pull request #32 from yupe/master

UPD: merge with yupe/master
UPD: fixing 1 from #569 broken jquery.js on first step
UPD: fix prev commit
Merge pull request #571 from angel-kulikov/master

UPD: fixing 1 from #569 broken jquery.js on first step