Updated bug in IE 8

Error:
Conversion from "object" format not allowed on jQuery.multiDatesPicker
Updated bug in IE 8

Error:
Conversion from "object" format not allowed on jQuery.multiDatesPicker
Fix altFieldId jQuery search
Merge pull request #52 from nibble/master

Fix altFieldId
Merge pull request #37 from vstene/master

Fix IE8 Bug
IE 8 failing to remove dates

The error received was
Conversion from "function" format not allowed on jQuery.multiDatesPicker
(once I fixed the error message that is - also in this commit).
Merge https://github.com/dubrox/Multiple-Dates-Picker-for-jQuery-UI
Merge https://github.com/skillstream/Multiple-Dates-Picker-for-jQuery-UI