[NOBTS]modify UI code.
Merge branch 'master' of https://github.com/nhnopensource/ngrinder.git
Merge branch 'master' of https://github.com/nhnopensource/ngrinder.git
Merge branch 'master' of https://github.com/nhnopensource/ngrinder.git
Merge branch 'master' of https://github.com/nhnopensource/ngrinder.git
[NGRINDER-563]Update jqPlot to new version.
[NOBTS]remove chart title from drawChart function.
[NGRINDER-562]Update js code for providing per-test TPS graph in the
detail report page.