Initial conversion to namespaces
Backport Doctrine conversions from 2.0 @tfotis
Backport installer to Doctrine conversion done in 2.0
Backport changes from 2.0
Add back legacy.
Convert to namespaces.
Backport Category conversion from 2.0
Backport Category conversion from 2.0
Added upgrade routine [Category Module Upgrade required!]

This migrates the old object attributes for categories to the
new categories_attributes table.
Added upgrade routine for Users attributes. Read notes:

The current state of the upgrade after this patch is you must
run upgrade.php - since the development version is already marked
at 1.3.6 you should then manually run the upgrade of Users module
via Extensions module.
Changed typehint.
Added composer definitions
Flesh out more compulsory assets
Update module layout
Merge pull request #674 from drak/users_ns

Convert Users module to namespace
Merge pull request #675 from drak/composer

Added composer definitions
Merge pull request #658 from zikula/cat_ref

Convert Category module to Doctrine
Merge branch '1.3'