Dwarf Therapist working on OS X

Tested on OS X 10.9 Mavericks
Merge pull request #1 from tareqak/get_osx_working

Dwarf Therapist working on OS X
- updated offsets
- reverted changes to cp437 codec when reading/writing strings
tweaked weapon/shield affection levels
Remove useless file
Fix accents on OS X
Add to gitignore
Merge pull request #2 from tareqak/fix_accents_osx

Fix accents on osx
Merge pull request #3 from tareqak/gitignore_osx

Add to gitignore
updated readme urls

- uploaded and linked Tareq's OSX build
readme again... formatting
readme file rename for markdown