Merge branch 'release/1.6.0' into develop
bump develop version to 1.7.0-dev after releasing 1.6.0
remove CONTENT_RSS_FEEDS from sample localsettings and document that it is no longer needed as of 1.6
add a custom permission for viewing internal dao; add to FA admin group by default [#46468443]
display a dao if audience is not internal OR if user has permisson to view internal dao links [#46468443]
document need to run syncdb for new custom permission [#46468443]
unit test for admin-viewable internal dao link in findingaid container list; correct internal dao permissions check [#46468443]
add css classes and styles so that internal dao links can be distinguished from public ones [#46992911]
preliminary script to convert unittitle text with digitized file names and ids to dao tags [#46471105]
update itemid-to-dao conversion script with better id parsing, digitized content detection, and error/totals reporting [#46471105]
better error checking for dm ids, and option to commit changes to subversion [#46471105]
only restrict digital resource filter to public dao if user does not have permission to view internal daos [#46987413]
tweak document search title to be meaningful when digital resource filter is used without keywords
only restrict digital resource filter to public dao if user does not have permission to view internal daos [#46494357]
unit tests for searching on external/internal digitize content [#46987413 #46494357]
update itemid-to-dao script to not add id attributes for pids since they may not be schema valid (: or leading numeric) [#46471105]
make dao show attribute accessible for testing in templates [#67049956]
display internal dao or dao with no href as reading room access only, with id [#67049956]
adjust styles for dao links
fix option declaration