(1) remove FlexGrid for its hard dependence on back-end;
(2) use pqgrid plugin to replace FlexGrid
(3) use insertModel to replace insertTemplate

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	modified:   css/style.css
	modified:   index.html
	deleted:    js/Flexigrid
	new file:   js/grid/ChangeLog.txt
	new file:   js/grid/GPL-LICENSE.txt
	new file:   js/grid/ReadMe.txt
	new file:   js/grid/images/Refresh.gif
	new file:   js/grid/images/cross.png
	new file:   js/grid/images/horiz-bg.png
	new file:   js/grid/images/horiz-slider-bg.png
	new file:   js/grid/images/loading.gif
	new file:   js/grid/images/page-first-gray.gif
	new file:   js/grid/images/page-last-gray.gif
	new file:   js/grid/images/page-next-gray.gif
	new file:   js/grid/images/page-prev-gray.gif
	new file:   js/grid/images/sort_asc.gif
	new file:   js/grid/images/sort_desc.gif
	new file:   js/grid/images/sprite.png
	new file:   js/grid/images/tick.png
	new file:   js/grid/images/vert-bg.png
	new file:   js/grid/images/vert-slider-bg.png
	new file:   js/grid/index.htm
	new file:   js/grid/localize/pq-localize-de.js
	new file:   js/grid/localize/pq-localize-es.js
	new file:   js/grid/localize/pq-localize-hu.js
	new file:   js/grid/localize/pq-localize-it.js
	new file:   js/grid/localize/pq-localize-ja.js
	new file:   js/grid/localize/pq-localize-nl.js
	new file:   js/grid/localize/pq-localize-zh.js
	new file:   js/grid/pqgrid.dev.css
	new file:   js/grid/pqgrid.dev.js
	new file:   js/grid/pqgrid.min.css
	new file:   js/grid/pqgrid.min.js
	new file:   js/grid/themes/Office/images/column-header-bg.png
	new file:   js/grid/themes/Office/images/column-header-over-bg.gif
	new file:   js/grid/themes/Office/pqgrid.css
	modified:   js/main.js
	modified:   templates/cols/template-handler.js
	modified:   templates/models/models.html
	modified:   templates/models/models.json
	new file:   templates/models/simple-nav/simpleNav.html
	new file:   templates/models/simple-nav/simpleNav.jpg
	new file:   templates/models/template-handler.js