added goal

added story, castle, new enemies, enemy counter, ending, and enemies
dropping gold
Did some small fixes and added some features

Fixed some grammar, changed some variable names, made trolls and goblins
equally found, fixed number of enemies not updating, and fixed a cheat
mode exploit. Coming next will be dynamically harder monsters,  dynamic
drops, and a fix for infinite potions.
Update RPG.java
Added fun to RPG README
added laziness
deleted laziness
Merge pull request #2 from goddardmorse/dev

Moving to src branch