Add development documentation.
Document settings keys for application.yml.sample
Small development:create_fake_email refactoring.
Fix Markdown styling
Update rails to 3.2.12 and json to 1.7.7.

 - Enforce Typhoeus version.
Define the maximum number of words for Post#title factory.
'Fork me' badge opens Github on a new tab [Issue #13]
Merge pull request #14 from omer-g/open_fork_me_badge_in_new_tab

'Fork me' badge opens Github on a new tab [Issue #13]