FEATURES: Kexi implements "Edit->Find", prints images and supports database templates

Main Window
- Edit->Find action added, works within table, query and form views as a global, context-dependent tool window.
- main window is activated after closing "Insert image" file dialog
= "find" action: restart searching from start for "Search all rows" mode if:
== user has changed the value to find since previous searching, or
== user has recently changed direction to "Search all rows"
- searching is performed within lookup values as well

Simple Printouts
- added support for printing and previewing images
- improved previewing quality
- fixed landscape mode
- fixed refreshing print preview after table data or query results changed
- fixed problem with records printed between page boundaries
- fixed problem with updating print preview's page navigator when number of pages differs compared to previous preview