Restored the "fill all the holes" strategy to the ZeroFill class, and introduced the fill_style option ("minimal" and
"all" are possible values). Also allowed a set of required times to be specified when asking the times series for it's
data. This way, we can ensure in the stacked bar chart that each data point in use has a value preventing the bars
from stacking incorrectly.
cleaned up the documentation a bit
fixed a property typo
added check for 404 response from the index_save call, assumes that auto_create_index is disabled and attempts to create the index before saving a second time
Merge remote-tracking branch 'spencer/auto-create-index' into spencer-404
Merge remote-tracking branch 'spencer/zero-filled-ts' into zero
Merge branch 'zero'
Revert "added check for 404 response from the index_save call, assumes that auto_create_index is disabled and attempts to create the index before saving a second time"

This reverts commit 556925f840f4680a3be61db51577ceada022d4f3.
Removed useless placement, added pointer class to field list
Adding panel should have all options
Improved error handling via alertSrv service
More error handling, changed es loading to use get instead of search
created timeSeries service with a ZeroFilled class to manage the rows for the histogram
moved the timeSeries service into the histogram module.
spacing
Brought code back into line with existing jshint
fixed 0 height bars
Adding grunt step to CONTRIBUTING.md
Rebased to master to include latest changes

updated the getFlotPairs() function to only check before and after a value, adding only enough zeros to maintain line graphs.
Fixed subsecond intervals in interval_to_seconds