D&D, Security fixes

+ D&D from desktop to FF & IE
+ relayout filter panel(if visible) on load, because new blocks are not
displayed
+ delete functions:
f_get_tags_value_l2_text
f_get_case_type_id
+ delete procedures:
p_create_case_system_folders
+ security audit fixes
+ dashboard items not opening on click
+ move directories existance check from config to corresponding
functions