Untabify test
Close channel after usage

closes #378
Merge pull request #405 from Xharze/closeChannel

Close channel
Added some missing [StringFormatMethod]s
Fix loss of exception info when reading Exception.Message property throws
Fixed issue with AutoFlush on FileTarget.
Merge pull request #407 from roji/missing_attrs

Added some missing [StringFormatMethod]s
Merge pull request #409 from wilbit/ExceptionLayoutRendererAppendMessageFix

Fix loss of exception info when reading Exception.Message property throw...
Merge pull request #415 from richol/master

Fixed issue (#414) with AutoFlush on FileTarget.