Switch from Seam Logging to Slf4j
Merge remote branch 'origin/master' into switch-to-slf4j

Conflicts:
	zanata-war/src/main/java/org/zanata/ApplicationConfiguration.java
	zanata-war/src/main/java/org/zanata/action/RegisterAction.java
	zanata-war/src/main/java/org/zanata/action/ServerConfigurationBean.java
Merge pull request #256 from zanata/switch-to-slf4j

Switch from Seam Logging to Slf4j