Merge tag '0.8.0-alpha.2' into develop

riemann-crate-0.8.0-alpha.2
Updated version for next release cycle
Typo in docs linking to java instead of riemann-crate
Update metadata
Update dev dependencies
Update leiningen plugins
Add jclouds and vmfest profiles
Add prep tasks
Add upstart as service implementation
Install bzip2 package for unpacking
Use postwalk-replace to allow variables in config
Add lein-pallet-crate plugin
Update to crates and pallet-lein releases
Add basic live test instructions
Use deep-merge on settings
Rename riemann-config-changed-flag
Change default version
Fix server config
Rename config file to riemann.config
Add asserts and logging