Replace tab by space to be compliant with jslint recomendation.

static/plugin_dbui/lib/appbase.js

static/plugin_dbui/lib/appcombobox.js

static/plugin_dbui/lib/appform.js

static/plugin_dbui/lib/appform2.js

static/plugin_dbui/lib/appgrid.js

static/plugin_dbui/lib/appgridfilter.js

static/plugin_dbui/lib/appgridmathjax.js

static/plugin_dbui/lib/appgridpaging.js

static/plugin_dbui/lib/appgridroweditor.js

static/plugin_dbui/lib/appgridroweditorcontextmenu.js

static/plugin_dbui/lib/appgridroweditortoolbar.js

static/plugin_dbui/lib/appjsonstore.js

static/plugin_dbui/lib/appmgr.js

static/plugin_dbui/lib/apppanelmathjax.js

static/plugin_dbui/lib/appsetbox.js

static/plugin_dbui/lib/appviewportcfg.js

static/plugin_dbui/lib/appviewportintreebase.js

static/plugin_dbui/lib/appviewportintreeform.js

static/plugin_dbui/lib/appviewportintreegrid.js