* Initial checking to setup Vue basic requirements. (#264)

Add App.vue
Add AppMenu.vue

* Vue with app menu (#265)

* Add vuetify framework
Update AppMenu.vue to include the basic menu item.

* use name as key.

* Add major components (#266)

* Add vuetify framework
Update AppMenu.vue to include the basic menu item.

* use name as key.

* Add Scalars, Images, Histograms, Graph.

* Switch to use the stylus language for CSS

* Port functions from Scalars.san to Scalars.vue

* Add config vue (#267)

* Add vuetify framework
Update AppMenu.vue to include the basic menu item.

* use name as key.

* Add Config Vue

* Integrate chart to scalar with Vue (#268)

* Fix warnings from Vue compiler
* use default prop instead of duplicate data and prop
* use function instead of shorthand declaration with data

* refract naming style, fix scalar options

* Fix config UI

* Add chart and chart page and integrate to scalar

* update with varun and jeff's comments

* Add images config (#270)

* Add vuetify framework
Update AppMenu.vue to include the basic menu item.

* use name as key.

* Add the Config.vue for Images

* Add the CharPage.vue and Image.vue

* Hook up the config to the image.vue so that the image height and width can update

* Show Scalar Data and add ExpandPanel (#272)

* Watch tagInfo changes to update chart and fix tooltip issue

* Add expand panel and maintain isShow state in the panel

* Add Expand Panel in Image

* Add watch group name reg (#273)

* Add vuetify framework
Update AppMenu.vue to include the basic menu item.

* use name as key.

* Add Watch on the groupNameReg

* Allow the nav bar to persist the selected item style. (#274)

* Fix the incorrect pagination issue. (#276)

* Add the Graph.vue and the Config.vue for Graph tab (#277)

* Add the Histogram related vue files. (#278)

* Fix error message on charts (#279)

* Make sure to clear the chart before each use.

* Add key for v-for loop.

* Add theme and fix UI (#280)

-Apply theme color in Vuetify
-Add main.styl to override Vuetify default stylus variables
-Add relative path in web pack config to find variables.styl

* Fix multiple scalar issues: (#283)

* Fix multiple scalar issues:
-download link / outliers should take boolean value instead of array
-download link now show proper selector of runsItem and download button
-Use tag as key to prevent chart re-rendering
-Add missing label in scalar config and fix UI

* simply use index for key because scalar has different tag info structure from image and histogram

* Fix font size and reorganize css and stylus (#287)

* Fix comments

* placeholder index.js

* Fix issue where download data link points to empty run (#294)

-Dropdown should only display non empty runs
-Select first run by default
-Remove drop down if all are empty runs
-Refract download type to runItemForDownload
-Add train run and multiple tags in mock data

* Fix error when scalar data empty (#298)

-Error comes in when trying to access elements inside empty data
-When one of the runs has empty data, the chart will display nothing even other run has non empty data
-Fix by checking length of data before accessing

* modified something in frontend directory

* modified gitignore

* remove node_modules

* scalars frontend basically done

* frontend rename common/fun to util