Updated mail plugin to 1.0.7
Removed field.label property from the interface

It was confusing to sometimes see the label and sometimes the name
of the field. The label was used for i18n purposes. However, that
has never been implemented properly.
Added external ID and type to fields
Changed scaffold views, so the pagination is scaled fit the menu's
Added field external ID to history popup
Charts now only show numeric values
Improved import wizard with options

User now has the option to choose between fuzzy and exact matching
(exact matching is default). The user can also choose to extend
his selection (on the screen) to the right and to the bottom of the
file. This is particularly useful with large files.
Merge branch 'master' into importer-improvements
Implemented restrict field matches to a field category
Added default unit and procedure fields in import wizard
Merge branch 'importer-improvements'