Release 4.2.0

• Merge remote-tracking branch 'origin/master' (5836b4f)
• Merge pull request #499 from semla/tos-privacy-dialog-for-providers (a93fe38)
• Merge remote-tracking branch 'origin/master' (1fe1733)
• Merge pull request #500 from alonshmiel/can-edit-account (f1b2ab2)
• fix(lib): updated deps (86656f7)
• Update readme files (f488236)
• Merge pull request #513 from mukaschultze/488-remove-internal-rxjs-imports (2add36a)
• Merge pull request #509 from asithade/tos-privacy (04c3896)
• Forgot to change 'rxjs/BehaviorSubject' (cbd5941)
• Remove imports from 'rxjs/internal' (7b0904c)
• ToS & Privacy Policy on Register Component (363dd81)
• whether to render the edit account button (cf63928)
• show tos & privacy dialog also for providers (119feeb)