Wizard Spell Improvements

Update 9/7/2014:

- Conjure elemental, deity, and golem have been improved in two ways:

1. the duration of the follower has been extended by a raw amount and by the user's willpower.
2. training beyond 100% increases the followers' lifespan and decreases the user's prevention time.

- Bifold rune has been improved in the following ways:

1. an additional charge is granted for every 25% trained beyond 100%
2. each 150% extra training over 100% increases the bifold rune power by a significant amount (this will be noticeable as soon as the user reaches the first 150% threshold)
3. a minor damage bonus per bifold rune use increases proportionally with the amount of beyond 100% training