Stefan Matheis and I have conspired to make the various Solr config files editable from the admin UI. Here's the Wiki writeup:
https://wiki.apache.org/solr/Editing%20configuration%20files%20in%20the%20admin%20UI It's not quite complete yet, see the sub-issues attached to https://issues.apache.org/jira/browse/SOLR-5446, they involve adding a reload button, being able to add new files and a bit of cleanup. In the sprit of getting this into people's hands ASAP, though, I thought I'd let people know. Give it a spin and tell us what you think! Current 4x and trunk (5x) have this if you download and build.
