Add introduction

* Add introduction page.
* Add images, texts and translations provided by Markus.
Add account registration form and change toolbar

* Add 'sign in' and 'register' fields to toolbar.
* Add account registration form.
* Registration via API.
Add track upload

* Add track upload functionality.
* Upload via API.

Remark:

* A clean error handling is missing.
* Deletion of tracks is not implemented.
Add .gitignore

* Ignore files and directories which should not be commited.
Change redirection on home site

Replace redirection to 'testdepth.openseamap.org'. Switch to
'#introduction' instead.
Remove unused template
Add README file

Add a README file which contains some information about the
repository. Short installation instructions are included as
well.
F: show depth values
Merge pull request #1 from dfa/master

Add README file
Show depth values

* Increase the zoom level for the base map.
* Configure the base map to zoom the tile images on client side
  for zoom levels > 19.
* Change layer names for the track point layer.

[dfa@bezono.org: changed commit message.]
[dfa@bezono.org: removed superfluous method 'createLayer' (dead code).]
[dfa@bezono.org: did some minor code style changes.]
Signed-off-by: Dominik Fässler <dfa@bezono.org>
Upgrade handlebars to version 1.0.0

Source  : http://handlebarsjs.com
Version : 1.0.0
License : MIT
Update handlebars precompiler version in README

The version 1.0.12 can now be used to precompile the
handlebars templates.
Merge pull request #3 from dfa/master

Upgrade handlebars library
B#7: Show correct upload messages
Merge remote branch 'upstream/master'

Conflicts:
	src/js/oseam-views-maptracks.js
F#12 Provide upload instructions
F: introduced vessels processing
B: Fixed track upload with new api
F: Enabled registration
F: Fixes for registration and additional track processing