Update readme.md
Merge branch 'develop'

* develop:
  update readme
  take fieldgroup into consideration when getting values from a field group (don't just look at the field slugs). fixes #92
  misc fixes
  readme update
comment and begin wp_error
fix js error
add old test back so i dont lose them
fix for slashed vals
remove debug
fixes
add sublime project + ignore sublime workspace
start writing unit tests again
rename
update unit tests
added rest of tests. now we kinda... pass the tests!
readme + fix test for multisite
tag new version and fix some travis things
Merge branch 'master' into develop

* master:
  tag new version and fix some travis things
  readme + fix test for multisite
  added rest of tests. now we kinda... pass the tests!
  update unit tests
  rename
  start writing unit tests again
  add sublime project + ignore sublime workspace
  fixes
  remove debug
  fix for slashed vals
  add old test back so i dont lose them
  fix js error
  comment and begin wp_error
  Update readme.md