Replace CTDouble with CTFloat

And replace use of "Double" with "Float" in error messaging and tests
Merge pull request #1938 from cleishm/ctfloat

Replace CTDouble with CTFloat
Make the LoadCSVTest pass

As it turns out, this test wasn't even running because of the missing
RunWith[JUnitRunner] annotation and it's bitrotted since it was written.
Migrate CypherParsetTest to FunSuite

It doesn't seem to run from mvn
Add the missing RunWith annotation to StringLiteralTest
Fix licenses in cypher-docs to include opencsv
Make browser detect LOAD CSV as a valid query start and add highlighting for split, toInt, toFloat
Add instructions on where to add a new Cypher keyword to browser README.md
Add :help LOAD CSV to browser
Merge pull request #1941 from jakub-/loadcsvtest

Make the LoadCSVTest pass
Merge pull request #1942 from jakub-/cypherparsertest-funsuite

Migrate CypherParsetTest to FunSuite
testing pr builds in team city, will revert
Merge pull request #1945 from boggle/2.0-maint

LOAD CSV support for browser
Merge branch '2.0-maint'