Fix #1024: cleanup files if shard creation fails
Fix #947: exit nice if no permission to write log
Fix #959: don't use closed connection in pb client
Fix #1113: engine.ProcessorChain check for nil
Processor chain notices should get logged as Debug.
Fixes #1069. Fix interfaces in admin UI.
Merge pull request #1109 from influxdb/fix-947

Fix #947: exit nice if no permission to write log
Merge branch 'master' into fix-1113

Conflicts:
	coordinator/coordinator.go
Merge branch 'fix-1113'
Fix #1093: correct error message for last()
Merge pull request #959 from influxdb/fix-959

Using closed connection in the protobuf client
Merge pull request #1024 from influxdb/fix-1024

Hitting open files limit causes influxdb to create shards in loop
Merge pull request #1093 from influxdb/fix-1093

Incorrect error message if using last()
sed_i -> $(sed_i)
Update CHANGELOG for v0.8.6
update to 0.8.6
Merge branch 'nxg_0.8.6' into nexusguard