Implement a wizard

[taviroquai]

The advantagens of a UI Wizard can be found here: http://ui-patterns.com/patterns/Wizard

The idea is to easy some tasks for the users that don't know the Interface and want to achieve some operation ie. create (or modify) a layer or map.

[taviroquai]

Proposed Wizard steps tree:

1. Create new map
   1. Enter map name
      1. Enter map projection
         1. Enter default map center coordinates and zoom level
            1. Choose layers
               1. Set map layers
                  1. Finish
            2. Modify an existing layer
               1. Finish
            3. Add new layer
               1. Finish
2. Modify an existing map
   1. Choose layers
      1. Set map layers
   2. Modify an existing layer
   3. Add new layer
   4. Finish
3. Add new layer
   1. Enter layer name
      1. Choose data source type
         1. Upload data source
            1. Choose projection
               1. Set vector style (vector only)
                  1. Set search properties (vector only)
                     1. Set feature info template (vector only)
                        1. Finish
               2. Set raster style (shapefile, mapserver only)
                  1. Finish
4. Modify an existing layer
   1. Choose existing data source
   2. Upload new data source
   3. Modify vector style
   4. Modify raster style (shapefile only, requires mapserver)
   5. Modify search properties (vector only)
   6. Modify feature info template (vector only)
   7. Finish