Add waterfall view
Restore accidentally removed function call
Merge tothandras/buildbot:waterfall_view (PR #1187)
nowrap names
Merge tothandras/buildbot:console_view (PR #1188)
remove master-side support for old-style source steps

Fixes #2842.
remove reference to non-existent class
fix location of EC2 latent build slave
fix module name
make ec2 not to bail when boto is not installed

* however make it bail if EC2LatentBuildSlave is used anyway
Update waterfall view
Merge tothandras/buildbot:waterfall_view (PR #1191)
Merge sa2ajj/buildbot:fix-misc-latent-slave (PR #1190)
remove tests for absence of dateutil (it's required now)
remove docs for old-style source steps, too
Merge djmitche/buildbot:bug2842 (PR #1189)

Fixes #2842.
remove compiled python modules

* quite helpful when you do module re-factoring
add plugin infrastructure for Buildbot

* add IPlugin interface that should be a base for all interfaces that can be
  delivered as a plugin
* add `buildbot.plugins.db` to load and check plugins
* add basic unit tests
adopt plugin system for www service
provide bundled change sources as plugins

* this should help to "unify" the way changes sources are defined