Added jujucharms and viewmode config flags

Added jujucharms and viewmode config flags

-Flag added for defaultViewmode; still defaults to sidebar. No other work
needed, since that's passed to the browser subapp which already knows what to do
with it.
-Flag added for the jujucharms landing page deploy mode
-"Hello World" placeholder jujucharms view and template added
-Browser and routeDefault method now jujucharms aware; uses config flag to
route * to the jujucharms view.

https://code.launchpad.net/~jcsackett/juju-gui/jujucharms-config-flag/+merge/172858

Requires: https://code.launchpad.net/~jcsackett/juju-gui/abstract-default-viewmode/+merge/172560

(do not edit description out of merge proposal)

[j.c.sackett, 2013-07-03 17:03:07]

Please take a look.

[curtis, 2013-07-03 18:15:16]

I have a question.

https://codereview.appspot.com/10916043/diff/1/app/subapps/browser/browser.js
File app/subapps/browser/browser.js (left):

https://codereview.appspot.com/10916043/diff/1/app/subapps/browser/browser.js...
app/subapps/browser/browser.js:701: next();
Why is next() removed?

[curtis, 2013-07-03 18:34:19]

We discussed the next() issue on IRC and agreed that you will restore the line.
It was an errant delete.

LGTM with the restoration.

[j.c.sackett, 2013-07-03 18:41:26]

Please take a look.

[matthew.scott, 2013-07-03 19:59:58]

LGTM, thanks!

https://codereview.appspot.com/10916043/diff/1009/app/subapps/browser/views/j...
File app/subapps/browser/views/jujucharms.js (right):

https://codereview.appspot.com/10916043/diff/1009/app/subapps/browser/views/j...
app/subapps/browser/views/jujucharms.js:23: * Browser SubApp Sidebar View
handler.
s/Sidebar View/JujuCharms View/ I think?

[j.c.sackett, 2013-07-03 21:57:56]

*** Submitted:

Added jujucharms and viewmode config flags

-Flag added for defaultViewmode; still defaults to sidebar. No other work
needed, since that's passed to the browser subapp which already knows what to do
with it.
-Flag added for the jujucharms landing page deploy mode
-"Hello World" placeholder jujucharms view and template added
-Browser and routeDefault method now jujucharms aware; uses config flag to
route * to the jujucharms view.

R=curtis, matthew.scott
CC=
https://codereview.appspot.com/10916043