Migrate Angular-ui tabs to angularjs-material tabs

[Brian Lewis]

material tabs appears simpler, more robust, more slick! Trial what is involved on e.g. school

[Brian Lewis]

Steps:

1) change <uib-tabset active="vm.activeTab"> node to

<md-tabs md-selected="vm.activeTab" md-dynamic-height md-border-bottom>

2) Change <uib-tab disable="xxx"> => <md-tab ng-disabled="xxx">

That's about all!

Note that labels are now bold, since we no longer have the css entry for .table-pane label

May as well do this after "page refactor"

[Brian Lewis]

also <uib-tab heading= becomes <md-tab label=

[Ghislain Hachey]

chore(page refactor): materialize in progress

• change tabs to md-tabs
• change navigation menu
• some layout change to flex but not all converted
• indicators historical chart bug fix
• cleanup and styling improvements

Resolves #289, #287

→ <<cset fe4dec696dfd>>