Documentation added for renderFunction

Closes dandelion/issues#15
Changelog updated with 0.8.8
New blog post
Updated forum's link
Fixed markdown issue
Changelog updated
Updated changelog
Updated JSP and Thymeleaf references
Reference updated for export features
New sections added (export and paginationType)
Updated main config file
Added new Jekyll

The plugin generates links to the reference
Updated autolinks plugin
Updated plugins

autolinks plugin deleted
New autorefjsp and autoreftml plugins
Updated CDN section
Add "Spring PetClinic is on Github!" post
wording
Merge branch 'master' into wip-dandelion

* master:
  wording
  Add "Spring PetClinic is on Github!" post
  Updated CDN section
  Updated plugins
  Updated autolinks plugin
  Added new Jekyll
  Updated main config file
  New sections added (export and paginationType)
  Reference updated for export features
  Updated JSP and Thymeleaf references
  Updated changelog
  Changelog updated
  Fixed markdown issue
  Updated forum's link
  New blog post
  Changelog updated with 0.8.8
  Documentation added for renderFunction