Update bills.lang

Ligne 252 : Changement grammatical
- de "Paiements issue de l'acompte"
- en "Paiement issu de l'acompte"
Merge pull request #1821 from astebert/patch-1

Update bills.lang
Minor BugFix : Wrong variable reference in getNomUrl 

Display of Category Url was incompete due to reference to "$ref" instead of "$label"
Minor BugFix : Compatibility of function getNomUrl 

Using Ref & Label for Category Name display is necessary for compatibility
Missing Key for getNomUrl function
Missing Key for getNomUrl function
Minor BugFix : Missing thumbs folder in Category Images List

Sub-folder for thumbs was missing in category image list, url was wrong....
removed "thumb\" subdir addition 

Category Image Thumb sub-folder now directly added by function liste_photos
Avoid missing class error for fetch_thirdparty method
Not need to test if class exists with require_once
Fix: wrong function name
Add function dolEscapeXML
Merge branch '3.5' of git@github.com:Dolibarr/dolibarr.git into 3.5
Revert "Add function dolEscapeXML"

This reverts commit 756b1d31ad24a7908a875e180ebc7a759ef31311.
 Avoid missing class error for fetch_thirdparty method
Fix: Civility & birthdate wasn't save into adherent module
Fix extrafield from list feature where filter is provided
webservice Thirdparty parameter lastname for invidual creation is now
lastname and not ref
Missing trans key into resource module
Bad function call