hlim10 jcheng26: 
1. Created 5 classes(Warrior, Log, Mage, Archer, Summoner) - will be
changed later.
2. Can choose one of characters
2. Made each character's stat
3. Made Database to store character info(character, stat, level...)
4. Made spots for each character's skill
5. Changed to ScrollView to prevent the parts of screen from not being
able to displayed 
6. Did some refactoring - Extracted duplicate lines to new function

(Since our pair had a trouble to commit, we commit everyting what we did
so far at once)