Disable unhelpful warning from openid4java
Import MDCInsertingServletFilter from http://logback.qos.ch/manual/mdc.html
Merge pull request #234 from zanata/mdc-filter

Import MDCInsertingServletFilter from http://logback.qos.ch/manual/mdc.h...
Remove obsolete exception for maven-dependency-plugin
Merge pull request #235 from zanata/mdc-filter

Remove obsolete exception for maven-dependency-plugin
Merge pull request #233 from zanata/disable-openid-warning

Disable unhelpful warning from openid4java