Merge pull request #28 from chnupal/master

Update spravy
Partially revert #a7ba78c
Cleanup
Question count in overview
is_safe function
cleanup
Merge pull request #29 from darxxik/master

is_safe, cleanup
Voting lock
Merge branch 'master' of https://github.com/frantisekz/php-vote
Gitignore
Drop bad characters in input, first batch
Use PHP native functions where possible
Increase user class test coverage
Fix voting lock
One more check
Fix logic in is_safe
Didn't want to push this
First tests for voting class