https://gist.github.com/4832b508eab672f7f035b3f5f70b34b0

I couldn't click any of the enchantments.
https://gyazo.com/1e2a63a5ce783237b746effe9e3ae473

In 1.8 you need lapis lazuli to enchant items. If you want to use enchantments in 1.7.x you need to install a plugin which automatically puts it in the enchanting table. I will probably release a sparate plugin which automatically puts the lapis lazuli from the players inventory in the enchanting table for 1.7.x players.