[WIP] Disable sexytables

[roll]

• fixes https://trello.com/c/AJ9neUZB/339-open-data-survey-implement-horizontal-scroll-functionality-for-small-browser-windows

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@smth
@dannylammerhirt
I have tried different sexyTable() call options (like document.ready, window.load etc) but it doesn't help. My understanding that there is a bug in the sexytables lib (http://www.heldercervantes.com/sexytables/) and because this lib is not maintained we can't really do something about it.

I see these options:

• mark it as know bug and leave as it is (still resizing is not so usual action)
• disable sexytable. It will disable sticky table headers - it doesn't seem a good idea
• allocate more time to solve this by switching on different plugin/solution instead of sexytables