More color code handling

• In the Show Encounters list in the Edit Trigger dialog, fix testing and filtering for regular expressions containing a ^ start of string anchor to match how the ACT English Parser implements it (i.e. the start of the string is after the timestamp).
• Fix sharing from the Share Dialog [Macro] button when the recipient does not have the sender on their whitelist.
• Since EQII seems commited to adding color codes to zone names some tweaks to handling them:
  • Move the Enable on zone-in up one menu level to be more accessible.
  • Automatically strip the color code when using the [Category/Zone>>] button in the Edit Trigger dialog.
  • When creating a new trigger in a new category using the Edit Trigger dialog and you are currently in a color-coded zone, strip the color code off the Category Zone and set the Enable on zone-in for the category.
  • When creating a new trigger for a color-coded zone, set the Restrict to Category / Zone checkbox appropriately depending upon whether you are currently in that zone.
  • When sharing a trigger via EQII macros using the category's Share Dialog with the Alt Encoding checkbox checked, also share the Enable on zone-in setting for the category.