Add speed index test and sample data
Improve agent robustness and cleanup

Improved the page timeout handler to prevent race conditions and
  allow more time for posting results.
Improved the getwork/workdone handler to catch I/O errors and
  recover correctly.
Added "--killall 1" support to run an agent as a "device" user, e.g.:
    sudo -u deviceX ./wptdriver --killall 1 ...
  and `killall` zombie processes between runs.
Abort wd_server if PAC is invalid
Fixed pcap unlink
Converted process_utils callbacks to schedules
Ensure that test labels are visible and wrap to fit within the container.

Test labels are commonly defaulted to the test URL. URL strings may not contain many word-breaking characters, so the text overflows beyond the container.

word-wrap: break-word; ensures that the text breaks as necessary to keep the entire label visible.

Read more: https://developer.mozilla.org/en-US/docs/Web/CSS/word-wrap
Only send video/pcap to agent if file exists
Made process_utils "app" arg required.
Make test labels clickable when tests are still being run

Test labels are clickable on the comparison page when the results are in, but not clickable while the tests are still being run. Labels should always link to the test results page (or to a particular run, when available).

Need to override the color of the anchor from black to white for legibility.
Added scheduleKillTrees
Merge pull request #105 from wrightt/master

Improve agent robustness and cleanup
Merge pull request #119 from rviscomi/master

Ensure that test labels wrap to fit within the container
Switched to using imagemagick for avi blank frame detection
Merge branch 'master' of github.com:WPO-Foundation/webpagetest
Merge pull request #116 from qeny/master

Add speed index unit test
Fixed broken pull request
Merge branch 'master' of github.com:WPO-Foundation/webpagetest
tweaks to the imagemagick diffing to work on both linux and windows
First pass of chromedriver2 support.
Installed current WDJS under node_modules, started updating to WDJS API changes.