do not set up commit msg hook if fetching failed
bump version to v0.4.1

- update changelog
add step-by-step guide for plugin development
display code review and verified status in list

Resolves #23
show comments (and actions) in change detail panel
update documentation files

- add section how to support this plugin
- cleanups
refactor access to settings

- introduce GerritAuthData holding all information
required to connect to gerrit server
- make GerritApiUtil and GerritUtil directly access
global GerritAuthData unless other information is
provided (testing the connection in SettingsPanel)
fix remembering self-signed certs for hosts

- fix load logic (trusted hosts will be remembered after restart)
- save authority instead of host only (e.g. host:8080 instead of host)

Related to issue #25
restore Gerrit 2.6 support

- retrieving messages in change details is not supported

Related to issue #25
fix for self signed ssl connections

- fix escaping issues

Resolves issue #25
migrate to google-guice
fix initialization of actions through proxy
remove SslSupport as application service
refactor / optimize review comment sink

- fix possible IllegalOperationException (Collections#emptyList)
- based on code by forrert
move proxies for extensions to respective inner classes
more refactoring for guice modules

- injection/instance creation of GerritSettings
- replace static log with injection
- rename OpenIdeDependenciesModule
Merge remote-tracking branch 'remotes/uwolfer/master'

Conflicts:
	src/main/java/com/urswolfer/intellij/plugin/gerrit/ReviewCommentSink.java
	src/main/java/com/urswolfer/intellij/plugin/gerrit/rest/GerritUtil.java
	src/main/java/com/urswolfer/intellij/plugin/gerrit/rest/SslSupport.java
	src/main/java/com/urswolfer/intellij/plugin/gerrit/ui/GerritChangeListPanel.java
	src/main/java/com/urswolfer/intellij/plugin/gerrit/ui/diff/AddCommentAction.java
	src/main/java/com/urswolfer/intellij/plugin/gerrit/ui/diff/CommentForm.java
	src/main/java/com/urswolfer/intellij/plugin/gerrit/ui/diff/CommentsDiffTool.java
	src/main/java/com/urswolfer/intellij/plugin/gerrit/ui/diff/RemoveCommentAction.java
remove unnecessary calls to super() in proxy constructors
preload password for use in modal progress
fix unit tests