[#4943] ticket:246 add default tools to neighborhood-level setting
[#4943] ticket:259 * added the error message to the log
                   * rename default_tools to anchored_tools
                   * removed get_default_tools_order
                   * changed from dict to  OrderedDict in get_anchored_tools
                   * set is_missing = ''
                   * fixed test
[#4943] ticket:259
 * added exc_info=True to log.info
 * refactored install_anchored_tools
[#4943] no error when empty anchored_tools, update text
[#4943] test for top nav, include newly installed tools on first pageload