Fixed description of response.stream() which does not take a "headers" argument.
added git integration. More info about admin debugger
Better chapter headings (now show the title and chapter number)
Merge branch 'chapter_numbers_v2'
Fixed the obsolete reference to hmac settings, better internal links.
hmac fix. Added a few cross references throughout the book (i.e. internal links), gave a few more examples of Markmin links, changed a reference to 5th edition and added ch 15 to the introduction's summary of chapters
fix issue reported to github: showbutton does not exist SQLFORM.grid
https://github.com/mdipierro/web2py-book/issues/140
Some better cross referencing for the A and URL helpers
Merge pull request #151 from ww9rivers/master

Fixed description of response.stream() which does not take a "headers" a...
Merge pull request #152 from timrichardson/admin_debug

added git integration. More info about admin debugger
Merge pull request #153 from timrichardson/chapter_numbers_v2

Better chapter headings (now show the title and chapter number)
Merge pull request #154 from timrichardson/hmac_and_cross_reference_improvements

Fixed the obsolete reference to hmac settings, better internal links.
Merge pull request #155 from timrichardson/fix_showbutton

fix issue reported to github: showbutton does not exist SQLFORM.grid
Merge pull request #156 from timrichardson/ajax_crossref

Some better cross referencing for the A and URL helpers
Merge remote-tracking branch 'upstream/master'