getlibstatut added

Add function getlibstatut and libstatut on task (fk_statut allready present on project_task table)
Fix: form is not allowed inside a table

Conflicts:
	htdocs/fichinter/fiche.php
Fix: Allow percent to solve presentation pb by some pages.
Merge pull request #1713 from FHenry/3.6

Remove fetch_optionnal becauwe done in fetch from product class
Merge pull request #1715 from defrance69/patch-5

getlibstatut added
Fix: Solve timeout pb.
Merge branch '3.6' of git@github.com:Dolibarr/dolibarr.git into 3.6
Fix: Solve timeout pb.
Merge remote-tracking branch 'origin/3.5' into 3.6

Conflicts:
	.travis.yml
Fix: Checkstyle
FIX : Bad rank when a bill was made by multiple orders
Fix: Ignore vagrant dir into CI

Conflicts:
	.travis.yml
Fix: travis file for 3.5
Merge remote-tracking branch 'origin/3.5' into 3.6

Conflicts:
	.travis.yml
Fix: checkstyle
Fix: ON DELETE CASCADE is forbidden.

Conflicts:
	htdocs/install/mysql/migration/3.6.0-3.7.0.sql
	test/phpunit/SqlTest.php
Fix: Migration does not match tables
Fix: sql syntax error
[ bug #1522 ] Liste des propositions commerciales non filtée depuis un
projet
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