Remove getErrorManager() and setErrorManager.
Remove field for singleton.
Merge pull request #190 from greboid/desingleton

Remove getErrorManager() and setErrorManager.
Add a test to CoreFeedbackDialogModel.
Merge pull request #191 from greboid/desingleton

Add a unit test to CoreFeedbackDialogModel.
Created FeedbackHelper class.
Merge pull request #192 from greboid/desingleton

Create FeedbackHelper class.
Lambdaise some bits.
Merge pull request #193 from csmith/master

Lambdaise some bits.
Minor tidying.
Restore AutoValue imports.
Add test for FeedbackSender.
Merge pull request #194 from csmith/master

Minor tidying.
Make dependencies use gradlew again.

This should cache the gradle binary and save us a load of time.
Merge pull request #195 from greboid/desingleton

Add test for FeedbackSender.
Merge pull request #196 from csmith/master

Make dependencies use gradlew again.
Merge branch 'master' of https://github.com/DMDirc/DMDirc into errors