add style for metadata that customizes bootstrap defaults

I'm committing this blindly because any changes I make to .less files
break my build. So crossing my fingers it works for anybody else. Also,
there are forthcoming HTML adjustments in this and other repos.
add margin to adjust to new CSS
remove some styling that i don't think it currently helping
make first dialog (title) look more like the metadata one

including kathi's requested wording changes. text-align: left to
compensate for a right-aligned ancestor element.
make the next/save buttons blue
435px was still too tall on my machine
fix tab styling w/ CSS that got left out last time
artificially bump up selector specificity to override default

the better way to do this is to have these overrides come in last after
everything else, but i just don't know where "everything else" is
getting pulled in. feel free to change.
Merge remote-tracking branch 'origin/master' into metadata-styling-changes-issue-139

Conflicts:
	templates/layouts/workspace/bookshelf.html
another small adjustment that lost its way when i was committing blindly
make "close and save" blue if on last pane
make the editable title the appropriate color

for the module case, this assumes such an ID in the module metadata
dialog (can of course be adjusted later if we're reusing that ID and
just want to add some other module-identifying selector)
Merge pull request #27 from oerpub/metadata-styling-changes-issue-139

Metadata styling changes issue 139