Merge pull request #23 from kouzelnik/master

Merge
User levels adjust
CSS update

u table pridan max-height a scroll bar po jeho prekroceni + upravená
stránka se špatným kódem.
Merge pull request #24 from chnupal/master

CSS update
voting end time
Merge pull request #25 from darxxik/master

voting end time
Register test example
Travis update
Register test fix
FIx Register test on php 5.4
Fix Register test on php 5.4
Update README.md
FIx merge
Sync work
Merge branch 'kouzelnik-master'
Test suite update
Dynamic voting field
Merge branch 'master' of https://github.com/frantisekz/php-vote
Dynamic voting possibilities
Test deleting users