Collective.z3cform.datetimewidget

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* extract values in HIDDEN_MODE and add test for extract() [csenger]
* fix handling of AM/PM in DateTimeWidget and add test [csenger]

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* provide french translation [vincentfretin]

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* provide english, german, slovenian, spanish, portugal, croatian,
serbian(latin&cyrilic) translations [garbas]

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* MonthYearWidget added [garbas]
* spliting widget.py script into script for each widget [garbas]
* only using one hidden/display template [garbas]
* show_today_link widget option which is inserting current date into fields
using plain javascript

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* intendation problem again, this just isnt my day, tests passing [garbas]

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* intendation problem, didn't set new vim setup properly :P [garbas]