Update graphics Readme with lessc command
Add XO colors

Ported from sugar-toolkit-gtk3/src/sugar3/graphics/xocolor.py

This are just data so don't require tests.  This activity uses the
module to obtain a random color:

https://github.com/manuq/clockjs
Organize icons in directories

For now, moved the only activity-stop icon to 'actions', but more will
come.  It is the same organization as sugar-artwork GTK.  This is to
anticipate late reorganizations.
Add zoom icons

A few sugar icons to make web activity samples, but we'll move them
all later.
Set toolbar height

Previouly was defined by the children buttons.  But if the toolbar has
no buttons inside, it must have the same height, because it will
contain other widgets.
Style input text
Remove separate directory for bus and datastore

They are likely not going to become multifile.
The bus/bus, datastore/datastore imports was long
and felt overkill.
Merge pull request #21 from dnarvaez/subdirs

Remove separate directory for bus and datastore
Remove android blue highlight
Add README
Style input text with button inside

Right button for now.

Add three SVG "entry-cancel" icons for the different states of the
button.  It looks simpler to use different SVGs than to use JS to
colorize them in this case.
Remove harcoded 2px, use @line-width variable like sugar-artwork
Run js-beautify on xocolor
Revert "Run js-beautify on xocolor"

This reverts commit 68d7123c15e937bfa63e97f57ec93e6c7f864991.
Use objects for xocolor entries

It's nicer to be able to access the color as properties
and it works around a bug with js-beautify

https://github.com/einars/js-beautify/issues/273
Run js-beautify on sugar css
Update README.md
Regenerate CSS
Clean up bus initialization

* We now explicitly initialize the bus in activity, or in
beforeEach for tests. This is more predictable that initializing
whenever the bus module is loaded. Also it will allow to write
tests that uses a mock implementation of the bus socket.
* Environment setup is factored out to its own module. It will
allow other modules which needs to get values from the environment
to do so.
* The environment is taken from a single window.sugar.environment
object.
Rename Bus to bus

Just for consistency with the rest of the code.