Bump version to v0.20111021.

Bump version to v0.20110603.

Bump version to v0.20110301.

Bumped version to v0.20101108.

Updated CHANGES for v0.20100302 release.

Updated CHANGES for v0.20091223.

Updated CHANGES, added v0.20091001.

Created v0.20090928.

Created new README.md (about the project), INSTALL.md (how to install…

…), CONTRIBUTORS.md (who contributed) and CHANGES.md (what changed). These replace the old 'DevelopmentSoftware' wiki page and README_Calagator*.txt files.t

Fixed Event::search and Event#text_for_solr to use lower-cased string…

…s, because apparently Solr is case-sensitive.