Merge pull request #192 from Turbo87/i18n

Updated translations and template
views/settings: Added g-value for redirect after logout
Updated AUTHORS list
tracking/server: Removed code duplication
scripts/tracking: Added generate_through_daemon.py script
Merge pull request #193 from Turbo87/tracking

Tracking daemon code fix and new helper script
templates: Added .container-fullscreen to base-fullscreen template
css: Moved map size css to .olFullscreen class
css: Simplified map.css

Removed some obsolete rules
Merge pull request #194 from Turbo87/map-css

Fullscreen map CSS improvements
model.airport: add valid_until column
model.airport: make by_* aware of the date
lib.xcsoar_.analysis: use flight date to get takeoff/landing airport
scripts/import_welt2000: update database instead of replacing everything
Airports: replace surface 'gras' by 'grass'

See 428ee253594dfb530b197eff6ba0707dcc79e0d5
model.*: add explicit SRID to geometry columns

They somehow got lost?
mapserver: add gray airport icons for closed/removed airports
helpers: Added pygmentize() function via Pygments
templates/macros/links: Forward **kwargs to url_for() function
css: Added .panel-separator and .panel-subtitle classes