Fix JMP logo url
Define default values in model, instead of database

This allow Doctrine to properly validate our schema
Fix unit test expectation since we accept lowercase value for exclude
Fix unit tests expectations for subfilter computing

Since we compute filters as the sum of itself and its children, we
need to also adapt unit test expectations (see commit 170d0499473b4c519d3fa6c24f53027b1b199e65)
Switch to stable UbuntuGIS

Latest modification in UbuntuGIS broke some dependencies and makes it
hard to install the unstable version on Travis. So we fallback to
stable channel.
Switch to official PHPExcel package and update all of them
Add QuestionChoice model
Add select for Question Type and fix bug filters
Chart crashed when drawing more 5 lines

We now loop on colors and symbols array instead of defaulting on null values
Leverage Doctrine2 metadata instead of duplicating mechanism
Hydrator now supports Collection hydrating
Internal methods should be private to keep usage simple
Method must be protected to be mocked in unit tests
Add interface multiple question choices and part to question.
QuestionChoice are deleted from database when replaced by new choices
Replace usage of hasParts with getParts which was duplicated semantic
Upgrade to Karma 0.10
Save and update Questions and their Question choices

 - add a security to check non null $value in hydrator
 - add a callback function for create in AbstractRestfulController
 - question type changed from "3, 4 or 5 choices" to Multiple choices question
 - the choices can be added and removed separately
 - multiple part types can be added (e.g. Rural alone or Rural + total or Rural + Urban + Total or Total alone)
 - ticket #2171
Create and update Questions and their QuestionChoices

 - add a security to check non null $value in hydrator
 - add a callback function for create in AbstractRestfulController
 - question type changed from "3, 4 or 5 choices" to Multiple choices question
 - the choices can be added and removed separately
 - multiple part types can be added (e.g. Rural alone or Rural + total or Rural + Urban + Total or Total alone)
 - ticket #2171
Add new QuestionnaireRule model