Merge pull request #140 from havvg/master

add Tests for bundle features
Added check for the existence of extension info and a comment for readability.

Added test for missing extension information
Merge pull request #147 from thanosp/fix-missing-extension-notice

Added check for the existence of extension info
Merge pull request #148 from havvg/master

split documentation and README into chapters
Merge pull request #149 from havvg/master

add "Introduction" chapter to documentation