Added some API example, both in code and in README.adoc
Added explanation section on the current work and milestone targets
Linked straight to code in github
Merge pull request #124 from alexsnaps/Doc

Added some API example, both in code and in README.adoc
Fixed relative links to work on github
Got rid of relative links

but for the "forward only pointing" one
 #127 genericize abstract StoreSPITest
 #127 fix incorrect getKeyType() calls
Merge pull request #129 from lorban/issue-127

Issue #127 StoreSPITest should use type parameters
first draft of exposing stats
removed unused imports
issue-118: removed unsed passthrough stats, clean up
code reviews change