Using $mdThemingProvider to register styles

[vwillyams]

Removes hardcoded styling and allows users to define their own angular-material styling using $mdThemingProvider like they do for the rest of angular-material components.

(Note that I also dropped some coloring from md-toolbar because it was jarring and inconsistent with the rest of angular-material styling, otherwise all styles should be virtually identical using the angular-material default theme)

[vwillyams]

I noticed that this previously didn't resolve #422 so I went back and resolved all the issues there, along with a few bonus fixes and a new button added to the template for testing

[vwillyams]

FYI: example functionality in https://codepen.io/vwillyams/pen/KvdYjZ (using very ugly theme as the alternate, to show off how it works)

[pkcat]

Works in pages but font color not changing in a md-dialog after switching to dark theme

[vwillyams]

@pkcat please provide a replication, I was unable to replicate this - see https://codepen.io/vwillyams/pen/Nvjyrz for a quickly hacked together example of this working

[pkcat]

@vwillyams seems the cause is that I'm using angular material version 1.1.4, I have theme saved in $rootScope (eg. $rootScope.theme = 'alternate') and put md-theme="{{$root.theme}}" inside md-dialog tag then the theme is applied to all components in the dialog except font color..

[vwillyams]

@pkcat this scenario is now fixed (was bypassing the normal theme inheritance)

[pkcat]

@vwillyams thanks it works perfectly now

[alexwohlbruck]

Merge?

[valepu]

Any chance on this to be merged?