Ignore bogus events on IE (fixes #1040)
Added test for buggy input events on IE10/11 (#1040)
Merge pull request #1041 from jazzzz/ie-input-fix

Ignore bogus events on IE (fixes #1040)
#1040, #1041: Input with placeholder shouldn't be validated on init (IE 10/11), thanks to @jazzzz
Restore default options after event tests
Added double submit test (issue #481)
Fixed double submit with defered validations (fixes  #481)