funder_name property added to Project

funder_name is a varchar in the db. method to retrieve it checks for
name of associated funder org first before defaulting to the field.
setter looks for organisation of matching name before filling in the
field.
Added funder name field to project creation page

Major CSS fixes needed
Export settings fixed for modal

Export settings were working well on Export tab, but not in modal on
the edit tab. Fixed this by having form submit via AJAX, using JS to
reset fields to default values when “Reset” is clicked, collapsing
accordion on save, other JS to tweak other on-screen notifications/cues
as appropriate.
Trying to bring presentation in line...
Fix for lower save button
Merge pull request #120 from DigitalCurationCentre/export-modal-fixes

Export settings fixed for modal
Looking better...
Field presentation sorted
Custom heading can be set on export

Accessed through method in app/models/plan.rb to facilitate dynamic
default value based on phase title.
Merge pull request #122 from DigitalCurationCentre/Custom-plan-title-for-export

Custom heading can be set on export
small changes of css and adding text
Merge pull request #121 from DigitalCurationCentre/Other-funder

Other funder
admin interface - preview all versions

Allow the user to preview all versions of a phase, with a back button to
the edit page