Fixed that pages where cached alltime.
Implemented auxiliary methods.

Also added some javadocs that where missing.
Added an abstract class for PageFactory and changed `mustCreatePage`
method to `isTransient`.
Update quickstart.md

I have corrected the formating to be Markdown compliant.
Merge pull request #15 from PhoneixS/fix-page-cache

Fix page cache issues
Merge pull request #16 from PhoneixS/patch-1

Update format of quickstart.md