Speed up dev tools parsing by optimizing checking for cells in multidimensional arrays.
Merge pull request #241 from geening/master

Speed up dev tools parsing by optimizing checking for cells in multidime...
Added a cache for the processed dev tools requests and page data so we don't keep re-processing the large dev tools files.
Broke out the dev tools cache files into separate files to keep them small
Tweaked the gzip read code to use dynamic buffer sizes to balance memory use and performance.
Added support for capturing Chrome Traces from wptdriver
wptdriver 176
Add checkbox to compare first and repeat view
More timeline clock fixes
Bumped the cache versions up so that the timeline timestamp changes can be retroactive
Merge pull request #165 from vgnett/compare

Add compare checkbox for first and repeat run
Changed the location alerting to not alert hidden locations better and a few output formatting fixes
Merge branch 'master' of github.com:WPO-Foundation/webpagetest
Added support for reporting timed out page loads for the mobile tests
Add check for value of PHP memory_limit directive
Merge pull request #244 from arolleston/master

Check the value of the PHP memory_limit directive
Merge branch 'master' into setdnsscript