Merge branch 'release/1.3.0' into develop

* release/1.3.0:
  update support
  bump
Merge branch 'hotfix/1.3.1' into develop

* hotfix/1.3.1:
  remove dependencie jquery (because not always required)
  bump
add v0.1 of scroll-to
updage
adj readme
Use single quotes for consistency and performance
Only calculate visible nav items
Merge pull request #39 from Kunstmaan/feature/navigation

Only calculate visible nav items
add default 0 value to targetOffset
Merge pull request #37 from Kunstmaan/feature/scroll-to

Feature/scroll to
bump
Merge branch 'release/1.3.2'

* release/1.3.2:
  bump
  add default 0 value to targetOffset
  Only calculate visible nav items
  Use single quotes for consistency and performance
  adj readme
  updage
  add v0.1 of scroll-to