[TASK] CGL
[TASK] Added resize callbacks
[BUGFIX] Only use min width if > 0
[TASK] Disable min width by default
[TASK] Added max columns setting
[TASK] Set min columns = 1 as default
[TASK] Renamed minWidth to minColWidth
[TASK] CGL
[BUGFIX] Return proper element on resize callbacks
[TASK] Calculate row height in percent based on width if row height setting is 0
[TASK] Set default row height to 0
[TASK] Add adjust span callbacks
[BUGFIX] Ceil row span calc
[TASK] Added min height selector