Added last print time to popover on file list
Added last print time to popover on file list
Better error handling for capture issues during timelapsing

Should help debugging issue #425 and any future problems in that area.
Start counting the layers at 1 instead of 0 in the gcode viewer.

Fixes #424
Merge branch 'devel' into imrahil-print_time
Decrease image counter if an image could not be captured from webcam

Should keep rendering of timelapse from breaking if only a couple of images couldn't be captured due to whatever reason. Suggested by @midopple in #344
Merge branch 'devel' of https://github.com/foosel/OctoPrint into upstream-devel
Corrected typo for print bed command "offset", expected parameter is called "offset" not "offsets"

Compare #444
Always interpret negative duration as 0.

Negative durations, especially for print time left, might arise if estimation is estimating less than current print time. So we just erase that margin of error in the UI.

Closes #435
Merge branch 'devel' of https://github.com/foosel/OctoPrint into upstream-devel
Merge branch 'upstream-devel' into devel