combined map/layer faceted search w/ thumbnails

Conflicts:

	src/GeoNodePy/geonode/maps/models.py
	src/GeoNodePy/geonode/maps/urls.py
	src/geoserver-geonode-ext/pom.xml
remove experimental module from development - shouldn't have been committed

Conflicts:

	src/geoserver-geonode-ext/pom.xml
add function to get all keywords from geonetwork
add bulk thumbnail retreival function
make combined search work properly, implement some bytype and keyword filtering and layout adjustments with controls and continuous scroll
use 2.6 compatible function for xml traversal
Merge branch 'best-practices' of git://github.com/dwins/geonode into new_search

Conflicts:
	src/GeoNodePy/geonode/maps/urls.py
	src/GeoNodePy/geonode/maps/views.py
	src/GeoNodePy/geonode/templates/maps/layer.html
Some temp changes to make the new_search work.
Changing endpoint to /data/newsearch for consistency
Changing to use STATIC_URL in newsearch templates
remove some non IE dom use, implement summary of filters and removal

Conflicts:

	src/GeoNodePy/geonode/templates/maps/new_search.js
fix local variable overwriting, extract keywords from maps, ignore empty parameter lists
implement local_layers property in Map model
add query count and feedback on number of items being displayed, thumbnail hover
make manage.py executable
added haystack to the app
add more detail to the Layer index
ignore some generated files
add django-haystack to the requirements
add the search app which has a view loading json results from the index