centering timeline-header elements by absolute
Merge pull request #56 from haushinka2dx/timeline-header-centering-by-absolute

centering timeline-header elements by absolute
optimized the method of manage timeline
Merge pull request #58 from haushinka2dx/optimize-timeline-management

optimized the method of manage timeline
added timeline menu
restore default timeline
enabled to remove timeline on the timeline management dialog
store the timeline definition(s) to localStorage
added icon stands for each timeline. and changed name of each timeline.
Merge pull request #59 from haushinka2dx/removable-timeline

Removable timeline
changed api from search to timeline to fix not-related message is shown
on each timeline.
Merge pull request #61 from haushinka2dx/fix-not-related-message-shown2

changed api from search to timeline to fix not-related message is shown on each timeline
Merge branch 'master' into starter

and added group timeline.

Conflicts:
	js/atmos-settings.js
	js/atmos.js