Merge tag '0.8.0-alpha.1' into develop

riemann-0.8.0-alpha.1
Updated version for next release cycle
Add api and annotated doc links
Use lein for build, clojars for jars
Update for service abstraction in pallet 0.8.0-beta.6
Update release script for resources
Updated metadata for 0.8.0-alpha.2
Updated project.clj, release notes and readme for 0.8.0-alpha.2
Merge branch 'release/0.8.0-alpha.2'