---This is a major addition to gs2crmod. This commit adds a correlation
function calculation capability. Use of the correlation_fuction method
in interactive mode is documented in gs2.rb.
Version bump to 0.11.19
Regenerate gemspec for version 0.11.19
Merge branch 'master' of github.com:edmundhighcock/gs2crmod
---Merged
Conflicts:
	VERSION
	gs2crmod.gemspec
Version bump to 0.11.21
Regenerate gemspec for version 0.11.21