first files for Activiti Camel Guide
add SimpleCamelCall example
modify documentation of SimpleCamelCall
add ping pong case to camel documentation
update camel documentation
enhance camel documentation and getting ouput from camel route
enhance camel documentation and getting ouput from camel route
Merge branch 'update_userguide_camel' of https://github.com/smirzai/Activiti
small changes to pull request