Roadmap for AeroGear SimplePush Server

This roadmap contains future releases for AeroGear SimplePush Server
Fixing typo of JIRA names.
update jquery feed
Caching description
Typos
Android examples
API usage
Text tweaks and empty whitespaces
CacheManager proposal
Extensible cache configuration suggested by passos
Little explanation about the possibilities
Inclusion of some sentences explaining the methods for android
Quick not about offline storage
Inclusion of the workflow
Inclusion of workflows
Fixing some sentences and typos
Grammar check
Indentation and image typo