Fixed issue #34
Fixed issue #34

- Wrapped the offending mappings in an 'if'
-- `let g:scala_use_default_keymappings = 0` to disable the mappings
- Also used `<Leader>` instead of a literal `,`

normenmueller/vim-scala,randompearl/vim-scala,derekwyatt/vim-scala,ornicar/vim-scala