ticket:310 used render_to_string to generate parts of analysis xml file
tucket:312 remove 'selecting...' from filter field when ddcl is open
ticket:310 add spaces to metadata xml
Merge branch 't310_pretty_pring_xml_to_make_easier_to_handle_in_text_editors_and_unix_tools'
Merge branch 'master' into t312_remove_selecting_word_in_filters
ticket:312 removed scrols from ddcls
Merge branch 't312_remove_selecting_word_in_filters'