Clean up whitespace

- tabs to spaces
- strip trailing whitespace
- removed redundant comments
Shorter data Buffer to String
Package: clean up whitespace

- tabs to spaces
- remove trailing whitespace
Readme: clean up misc, added references, tables
Readme: added author footnote
Readme: added .api method
Package: require node version >= 0.8.0

Buffer.concat was introduced in node v0.8.0
Package: minor whitespace
Removed http from module interface
Moved http.get to function
Added .track method
Merge branch 'master' of github.com:fvdm/nodejs-piwik

Conflicts:
	piwik.js