fixed #1216, thank Antti Perkiömäki for reporting
Functional tests fail when run on their own (#1895).
Adds :view_wiki_edits permission to default roles.
Fixed #1810, one string left
fixed #1839, #1814, #1747 and #1698
fixed #1597, thank to Alexandre da Silva for patience :)
oops, we have newest #1849, sorry
fixed #1832
Fixed: unable to revert to a previous wiki page version.
Expand RAILS_ROOT path on startup (#1892).
