Addition of Type and Format classes, as well as the corresponding unit tests
Merge branch 'feature_datamodel' into develop
fix to use db connection settings

now using db connection settings. previously there was a regression
following imports reorg.
Merge branch 'develop' of https://github.com/mobyle2/mobyle2.lib into develop
db names cleanup

db name for unit tests becomes mobyle_test
process packages

package XML files are now processed.
TODO: link program to packages
missing import corrected for '--storeto' option
started linking programs and packages.

- Xinclude directives now processed
- TODO: work out the conflict between
SchemaDocument and use_autorefs.
- TODO: create package if it does not
exist yet.
parse 'simple' property from source XML

Parse issimple attribute from source XML to store it in 'simple' property.
Merge branch 'develop' into feature_mongokit_ee_integration
in Status test if other is a subclass of status Status

this allow to compare other object than status without raising an
exception
needed when used with mongokit
fix test_insert