#67 add waterfall brush in chart
Merge branch 'develop' into 1.2.1

Conflicts:
	jui.chart.js
	jui.chart.min.js
	jui.js
	jui.min.js
Merge branch 'develop' of https://github.com/seogi1004/jui into develop

Conflicts:
	jui.chart.js
	jui.chart.min.js
	jui.js
	jui.min.js
#85 valid check and animation logic removed!!!
#85 related resource removed!!!
#86 Emit method return logic changed
Merge branch 'jui' into 1.2.1

Conflicts:
	jui.chart.js
	jui.chart.min.js
	jui.js
	jui.min.js
merge to master
#87, #88 split line & area brush development!!!
performance tuning
refactoring path concate()
path performance refactoring in util.svg
 - related code changed
#90 path draw refactoring in util.svg
 - related code changed
#89 block grid domain apply reverse
#66 Add grid's color, title features
add svg.exportCanvas method
code refactoring...
 - minor...
code refactoring...
 - size method naming changed in chart.builder
fixed range grid domain
#92, #93: add 'rangebar', 'rangecolumn' brushes