Since travis send email by default only for PR, but send none by default for push checks

Hotfix/v4.3.6

* 'develop' of https://github.com/ONLYOFFICE/sdkjs: (28 commits)
  Check for filling form mode and editing comments in view mode was remaked.
  add asc_getCanUndo, asc_getCanRedo to base api
  add tests for BETA.INV
  add BETA.INV formula
  add c_oAscRestrictionType, add asc_setRestriction method
  delete duplicate, change name function
  for bug 27765 external OleLink/DdeLink
  add GAMMA.INV formula
  fix Bug 35092
  fix Bug 35087
  fix Bug 35100
  add formula GAMMA.DIST
  add GAMMA formula
  fix Bug 35070
  fix Bug 35062
  fix 35091
  add F.DIST / F.DIST.RT formulas
  add formulas: T.DIST.2T / T.DIST.RT
  fix Bug 35089
  add T.DIST formula
  ...