fix notification: remove circular dependency between $compile & ui-router

$compile is dependent on $http. ui-router is also dependent on $http. By creating a
controller managed by ui-router and depending on LxNotificationService, a circular
dependency was created.
Fixed by using $injector in LxNoticiationService.
feat colors: add theme global colors and colors classes

Settings include now global themes color with primary colors and accent
colors based on http://www.google.com/design/spec/style/color.html .
There are also background colors classes and text colors classes.
chore demo: updated global CSS with new colors classes and theme
Merge pull request #15 from lumapps/feat/colors

feat colors: add theme global colors and colors classes
refactor dropdown: remove useless code
fix select: change width attribute

According to dropdown refactor, full-width attribute has changed to
width attribute.
Merge pull request #16 from lumapps/fix/dropdown

refactor dropdown: remove useless code
feat tabs: add color themes

Indicator, active bar and ripple colors can be changed.
chore demo : add color themes on tabs + fix color

Colors themes example on tabs feature and fix colors for link examples.
feat tabs: add scope variables and dark/light theme

Colors are now defined with scope variables. Colors managed with a
light an dark theme, following google specifications :
http://www.google.com/design/spec/components/tabs.html
chore demo: tabs demo updated with themes and colors
feat tabs: change default theme and parameter name
chore demo: tabs demo updated with renamed parameter and theme
chore demo: add a background color to a tab demo
Merge pull request #14 from lumapps/feat/tabs

feat tabs: add color themes
chore demo: fix css sidebar

The last three links didn’t include ng click which closes the sidebar
after a click on the link.
fix notification: missing method from injector object

$injector was called without its method "get", causing a javascript error.
feat fab: left and right direction for fab

On rollover, buttons can appear on the left or on the right of the main
button.
chore demo: fab demo with left and right direction

Demo updated with left or right direction for buttons that appears on
rollover.
Merge pull request #17 from lumapps/feat/fab

feat fab: left and right directions