Metadatainfo: Make the popup service toggleable
ech layers can be used in all other topics
Merge pull request #1377 from geoadmin/gjn_ech_for_all

ech layers can be used in all other topics
Merge pull request #1374 from geoadmin/gjn_metadatawindow_toggle

Metadatainfo: Make the popup service toggleable
Move draw/measure layers always on top
Improves css of popups in small screen
Add displayInLayerManager property
Makes the swipe using only layers added to the selection panel (as in RE2)
Merge pull request #1385 from geoadmin/dev_popupcss

Improves popup css
Merge pull request #1382 from geoadmin/fix_vectorlayer

Move draw/measure layers always on top
Fix swipe placement on window resize (FF & IE)
Invoke translate service for labels [#1355]
Display the website in fullscreen by default in ios > 7.1
Create simple help service and directive

This commit adds 2 components:

1) A Help Service (gaHelpRegistry). This service can be used
to get a html snippet corresponding to a given help id. Right
now, this html snippets are hard coded, but in the future, they
will come either from some template, url or service. It's a
requirement that the help texts will be used outside of the
application. This needs to be defined first.

2) A Help Directive (gaHelp). This directive can be used to
integrate a help button anywhere in the page (or partial) and
associate it with a given help-id (configured
with ga-help attribute). When the button is clicked, the
help is displayed.

Help in popups can also be used using the new 'help'
options paramenter (with help id as value). This will display
a help button in any popup.

Help button is shown in the following components:
- Search (on hover only)
- Catalog/Topic in Accordeon (on hover only)
- Layer Manager in Accordeon (on hover only)
- WMS Import (in popup)
- KML Import (in popup)

This PR also adds tooltip infos for all tools.
Fix the width of header when feedback modal is opened
Remove useless dependencies
Merge pull request #1387 from geoadmin/gal_profile_translate

Invoke translate service for labels [#1355]
Adapt to review comments. Thanks @oterral
Update translations
Merge pull request #85 from geoadmin/dev_help

Create simple help service and directive