Initial version of the dateformat function.
Expect timestamp parameter of dateformat function to be scala.Long
Added support for timezones in dateformat function.
Added conversion to double.
Changed recompile mode to incremental for cypher module.
Added functions to calculate geographical distance.
Fixed calculation of geographical distance.
Added optional radius parameter to geodistance function.
Added mercator function.
Merge branch 'project-customization' into date-extension
Fixed definition of dateformat function.
Merge branch 'project-customization' into convert-extension
Merge branch 'date-extension' into all-extensions
Merge branch 'geo-extension' into all-extensions