Revert "WIP tooltip"

This reverts commit 0bca8a7ca5a0f68479243a8d7734a7b693691835.
Merge remote-tracking branch 'r-y/tooltip' into develop-tooltip
fixed conflict
WIP for tooltip
fixed view cheat_sheet/index
[fix] cheat_sheet/index and cheat_sheet#index
fixed for r-y
added jquery plugin template
mini fix
WIP fixed for poe_pallet
fixed indent
WIP tooltip
Merge remote-tracking branch 'nakaya/develop-tooltip' into tooltip

Conflicts:
	app/assets/javascripts/poe_rails/cheat_sheet.js
	app/views/poe_rails/cheat_sheet/index.html.erb