gmap 5.x-1.0-beta6

This release fixes an issue with macros ignoring their 'center' param.

Changes since DRUPAL-5--1-0-BETA5:

• #298167 reported by zmove, bobchristenson: Fix info windows for map/node. (Although this backport is technically unncecessary, it helps reduce the differences between Drupal 5 and Drupal 6.)
• Remove an unneeded theme function.
• Fix strict warnings.
• Backport part of the D6 change to element processing.
  Fix missing latlon control in the settings page.
• Diff normalization.
  Switch to the drupal 6 method of theming the map. (Should reduce mapid related issues.)
• Remove expand_gmap, now that theme_gmap is more like the D6 way.
• Change element processing to closer match how the D6 version does it. (More diff reduction)
• Fixing align brokenness noted in comment 66 of #266595. I was treating a string as an array and accidentally stomping some css classes.
• Critical: Fix 'center' parsing that I broke in the last beta!