Added link to WRLC catalog when launchpad is unreachable.  Fixes #250
fixes #241
Update README.md
Update README.md
added default blank values to altsite_label and altsite_url parameters of function _render_cleanerror. Fixes #250
Merge pull request #251 from gwu-libraries/t250-wrlc-catalog-link

Added link to WRLC catalog when launchpad is unreachable.  Fixes #250
Updated root solr collection URL in line with solr 4
Revisions to README after stepping through it several times
Minor fixes to markup
README.md
Merge pull request #244 from gwu-libraries/t241-upgrade_solr4

T241 upgrade solr4 (and jetty9)
Added note of caution when upgrading from Java 6 environment (vs. clean install)
fixes #246