Merge pull request #498 from jtmarmon/master

Fixed issue #497
handle callback error from task
Merge pull request #499 from evantahler/task_errors

handle callback error from task
condional file headers
better pair selecter
Missing capital letter, my OCDs went high on this one
Merge pull request #503 from kytwb/master

Missing capital letter, my OCDs went high on this one
do not change mime or length
Merge pull request #502 from evantahler/conditional_file_headers

condional file headers
Fixes #504
Removing unnecessary fs module require in routes initializer
Merge pull request #507 from dangerdespain/routes-fix

Fixes #504 - Route file in project root is no longer supported
Update README.md
Update README.md
Merge pull request #1 from evantahler/master

Update