Merge pull request #16249 from KevinGrandon/revert_bug_969587

Revert "Bug 969587 - Integration tests for FTU variant customization"
Bug 969210 - Rewrite the parser to be more permissive and foresee more changes. r=julienw
Bug 972166 - MemInfo was not safe to call twice. r=julienw
Merge pull request #16067 from hfiguiere/bug969210

Fixes for MemInfo r=julienw
Bug 971865 - Dark bar should not be displayed when searching contacts inside dialer
Bug 971569 - Fix bootstrap_test after new TTLView implementation.