updated insert area
fixed div placement bug in editor. added insertion bar divider.
Revert "k"

This reverts commit 65f4ff4b170344e170defc0b9af51cbae70a9bf2.
Revert "Revert "k""

This reverts commit 789aca137c93747a88636edcac6b2645ecbf7555.
fixed bug in editor font coloring
insertion bar goes invisible when scrolling right
fixed loop highlighting
Merge branch 'editor' of https://github.com/haymez/Graphics-Lab into editor
fixed bug in getIndent() function
Merge branch 'master' of https://github.com/haymez/Graphics-Lab