New abilities, bugfixes, and updates

New:

- Wand Ability added

- Axe Ability added

Update:

- Holy Ward added to ability pool (no longer spawns from locked room)

- Ability limit set to 5 (was not a problem before since there were only 4 abilities in the ability pool, now there's 7)

- Updated some UI buttons to be bigger and easier to use on touchscreens

- Removed touchscreen UI when controller is connected

Bugfix:

- Ice Spikes ability now works correctly against the boss monster

- Damage buffs now scale correctly