Upgraded from Commons Logging 1.1.1 to 1.1.3.

This change is motivated by:

* Spring 4.1 has moved to Commons Logging 1.1.3 https://github.com/spring-projects/spring-framework/commit/8ae3aa7f59bea714abd7da681f487b5cf1b13165
* Servicemix (who now build the Spring EBR bundles) have done the same: http://svn.apache.org/repos/asf/servicemix/smx4/bundles/trunk/spring-core-4.1.0.RELEASE/pom.xml
* Other projects seem affected (Eclipse Gemini): https://www.eclipse.org/forums/index.php/m/1470033/#msg_1470033
* Sakai: https://jira.sakaiproject.org/browse/SAK-28095

1.1.3 of Commons Logging was released May 2013, contains only bug fixes (and is thus binary compatible): http://commons.apache.org/proper/commons-logging/changes-report.html

This change will enable the jcl-over-slf4j bundle to be used in an OSGi env that requires commons-logging 1.1.3