highlight the notice about column order in custom sqls.

refs https://github.com/propelorm/Propel/issues/746#issuecomment-23420531
Add Gemfile
Add travis-ci config file
Create README.md
Fix Gemfile (hopefully)
Merge pull request #228 from staabm/customssql

highlight the notice about column order in custom sqls.
Exclude useless files
Fix completely broken syntax
Fix completely broken syntax
Enable no_intra_emphasis and tables extensions

Commit cb281ddb remove these extensions so the site isn't rendering
tables and intra emphasis are rendered so the output is weird
[untested] try to fix propelorm/Propel#769

this should fix propelorm/Propel#769
Add a link to github "How to create a pull request" article
Merge pull request #229 from nicolas-bastien/patch-1

Add a link to github "How to create a pull request" article
Fixed two instances of a spelling error
Merge pull request #231 from halfer/patch-1

Fixed two instances of a spelling error
Couple more spelling errors
Merge pull request #232 from halfer/patch-2

Couple more spelling errors
highlight active menu element.
Added new layout. More responsive.
Create 2013-10-21-propel-1-7-0-is-released.markdown