* Updated the regex crate to 0.2.2 as per issue #88
* Added potential fix for cryptic CI error.
* Fixed incorrect handling of regex name call.
Fixes#88
Give these crates each a more standard directory layout with sources in
a 'src' sub-sirectory and Cargo.toml in the top lib/foo directory.
Add license and description fields to each.
The build script for the cretonne crate now lives in
'lib/cretonne/build.rs' separating it from the normal library sources
under 'lib/cretonne/src'.
