Views changed the way fields are handled, need to do some changes here to accomodate that. This is not necessarily the best way to handle things, but no point in re-working it until Views quits changing the way fields are handled.

As long as I'm already moving all these files around, get all the views handling into its own module.

#811704 Fix broken handling of calendar links that looses track of where you are if you click around too much.

#720868 by dereine and KarenS, Fix argument handling for dates outside allowed range so only page views return 404.

#1002202 More work on getting multiday working in D7 version. Still doesn't work, but got rid of fatal errors.

[#1007818] by timhomewood.  Fatal error from line 195 calendar.views.inc when enabling Multiday module (Drupal 7)

Mixed up last commit. Moving some files to calendar.module so they can be shared by basic calendar and multiday.

#994208 Fix mysterious 1 appearing before calendar info. Also fix some php notices caused by bad values in theme.