Merge branch 'release/1.4.0' into develop
- Function.execute() method internals refactored.
- Function.execute() can now take import_parameters and table_parameter Hashes as arguments in adddition to block-style usage
- Added method context/describe blocks to specs.
- Function.help() now always generates an HTML file.
Update version.
Merge branch 'release/1.5.0'