temporary fix : "pagination" on creative lists

This is a client-side pagination : we fetch 200 entries (instead of the
default 50) and we hope that this will be enough for now.

TODO : spend more time on this issue and implement a proper pagination
(with server-side filtering).
Merge pull request #6 from dduponchel/creative_pagination

temporary fix : "pagination" on creative lists
Added pagination for ads selection modal
Updated existing ads pagination css & number of results set to 200
Merge pull request #8 from thomas-tosoni/pagination

Added pagination for ads selection modal
Merge pull request #7 from thomas-tosoni/iteration-1

Update for Administration Platform
Error in adminitstration/organisation for creatives
Add bid optimizers

This patch adds the ability to use existing bid optimizers in an ad
group or create a new one from a bid optimizer engine.
Add bid optimizers in library

This patch adds the ability to list / edit one bid optimizer.
It lacks some features, like editing properties, but the demo is this
afternoon and I need to push that now !
Merge pull request #9 from dduponchel/bid_optimizer

Bid optimizer
add the bid stategy in the ad group overview
bid optimizer : edit properties

This patch updates the bid optimizer edition to allow properties
edition.
Merge pull request #10 from dduponchel/bid_optimizer

bid optimizer : edit properties