Update English mission descriptions to better fit tabbed mission menu

Mission recategorization into trainings, challenges and scenarios. This moves the missions into new folders and adds a nice tab widget in the mission menu

Fix typo in German campaign translation

Update changelog for space campaign updates

Complete space campaign's spacetrip mission if all main+side missions are completed

Draw 2 flowers for fully completed (w/ side missions) planets in space campaign

Expose number of air mines in Lua variable AirMinesNum

Add more descriptions into desktop entry files, fix some specification mismatches

Merge new Cheese map

Update changelog about campaign screen check marks

Don't show AI-controlled teams in campaigns page

Make campaign mission names translatable

Make campaign names translatable Also add German translation for both campaigns

Seperate campaign victories from campaign mission victories

Update campaign drop-down list after campaign victory

Fix final mission of Progress-based campaigns (like ACF) not being recognized as finished

Campaign page: Add labels and move start button to footer

Save mission success for A Space Adventure missions

Add support for storing and displaying success of campaign missions

Update campaign victory status when changing selection

Store campaign victories in campaign variable "Won"

Show check marks for campaigns with Won=true

Updated cheese map

Overwrite special ammo descriptions in Racer script

Allow to ignore overwritten ammo name in GetAmmoName

GetAmmoName now returns ammo name overwritten by SetAmmoTexts

Update changelog for SetAmmoTexts-related changes

Change descriptions for special Construction Mode tools

Add SetAmmoDescriptionAppendix to Lua API, see issue #82

Make SetAmmoTexts update ammo menu weapon name, too Lua API warning: SetAmmoTexts can not be called in onGameInit

Add Lua API function SetAmmoTexts (see issue #82)

Update Changelog: Add Racer and TechRacer updates

TechRacer: Cleanup mess regarding teams which did not finish

Fix some incorrect TechRacer messages

TechRacer: Show racing times and ranking in stats screen

Force TechRacer maps when image map is selected. Fixes Google Code issue #882 If you start a TechRacer map with an image map selected, the resulting map will likely to be completely unplayable. So this commit disables this.

TechRacer: Don't mess with ammo caption while in waypoint. Fixes Google Code issue #883.

Clean up TechRacer strings

Racer: Reduce minimum number of waypoints to 2, tweak descriptions

Racer: Clean up “did not finish” mess

Add new Racer script parameter: waypointradius

Racer: Dump old commented-out code

Racer: Show “Track completed!” message

Add “rounds” script parameter for Racer

Racer: Don't mess with ammo display when touching waypoint

Racer: Clean up strings

Implement stats screen for Racer

Add “boring” voice to voice queue to avoid voice overlapping

Enable timer warning sounds in hog placement phase

Add changelog entries for the timer color-coding and countdown sounds

When doing something, set ready time to 0 instead of 1

Fix sniper rifle making timer gray all the time

Show timer at 999s instead of 1000s

Make timer gray while the time is not running or while it is paused

Add ammoprop for blowtorch and pickhammer for not stopping timer in inf attack

Play countdown sounds for 4-1 remaining seconds and “boring” voice on timeout Also play “coward” voice for skipping (instead of “boring”)

Make the timer red when it is the get-away time

Turn timer digits green when it's still the ready timer

Add sounds for blowtorch, invuln., f. saucer, lasersight, portal gun

Fix Qt warnings about QLayout (Fixes #127)