[CLEANUP] Clean up variable and method names.

- use real camel case
- drop underscores
- replace abbreviations with real words
[CLEANUP] Clean up the indentation levels.
Merge pull request #21 from oliverklee/cleanup/naming

[CLEANUP] Clean up variable and method names.
Merge pull request #22 from oliverklee/cleanup/indentation

[CLEANUP] Clean up the indentation levels.