enhance error message when change/added attributes mismatch (refs #8481)
Merge pull request #1445 from Cracert/i18n

{TRANSUP] pl: context_help
don't reopen feature form when identify maptool is reactivated (fixes #10104)
[composer] Don't round down scale for maps if < 1 (fix #9366)
avoid reloading fields when existing provider encoding is re-set (fixes #10340)
[processing] some cleaning in saga algorithms
[TRANSUP] pl: help - vector layer properties