use mimeparser
adapt to changes in mimeparser v0.2.0
changed attachment handling and activated multithreading
introduce node compatibility and test
use tilde instead of circumflex in package.json
who cares about node v0.8 anyway
remvoe unnecessary check from parser
use mimeparser v0.3.0
Code review

- Remove stringencoding members from jshintrc globals
- Move stringencoding from dev dependency to depdendency
Merge pull request #4 from whiteout-io/dev/browser

Dev/browser