Merge pull request #270 from silky/master

add title to legal page
Add ? link to author identifier field
Fix bibtex generator on back button
Apple touch icon
asset_url
more detail about installing elasticsearch in README
fix dynamic finder to work with rails 4.1
Merge pull request #277 from bentoner/master

fix arxiv:feed_import for rails 4.1
Compress date widget
Default to showing all abstracts
Use mathjax cdn frontend domain
Add openjdk-6-jre to APT dependencies

(needed for Elasticsearch)
Should probably add git too for completeness
Consistent naming/capitalization
Update deploy script
502 error page