Make first item of fund sources as selected as default.
Resume fundSource as prior selected after submit
Tiny refactor
Revert "Tiny refactor"

This reverts commit 0f62cd6d3b86f3d6ee298b1cea315b3ae2d96a0f.
Do not need to retrieve prior selected item from DOM
Merge pull request #388 from peatio/select_first_item_of_fsources

Make first item of fund sources as selected as default.