test: route: move previews test to new file
test: route: simplify previews tests

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@8370 e93f8b46-1217-0410-a6f0-8f06a7374b81
route: split issue preview route to adding and editing

"No route matches" error raises in "preview_issue_path"
at app/views/issues/new.html.erb:35 on Rails 3.0.11 and Rails 3.1.3 new route format.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@8886 e93f8b46-1217-0410-a6f0-8f06a7374b81
resourcified project memberships

--HG--
rename : app/views/members/autocomplete_for_member.html.erb => app/views/members/autocomplete.html.erb
extra : source : 525eec1cf2be83fabfc0c1d7a3c0211a5ff1d4a3