Merge pull request #67 from Carreau/nrbrowser

enable newrelic browser performance tracking
Fixed some grammar and typos
Added to heroku directions.
Merge pull request #69 from rgbkrk/patch-2

Added to heroku directions.
Merge pull request #68 from rgbkrk/grammar_time

Fixed some grammar and typos
silence some exception.

Silence some exception to decrease noise in logentries logs
And see if some other specific Errors raises