Exposed a method to change cached sessionId
Changed name of environment variable
changeSession method is now chainable
Changed tabs to spaces
Merge pull request #7 from qliktag/feature/set-session-id

Exposed a method to change cached sessionId
updated doc for new method on core magento proto
Merge branch 'master' of https://github.com/MadisonReed/magentoapi into docu