Update 1.5.2

Lots of new features and improvements:

• CSV / Excel import and export of teams
• CSV / Excel import and export of players
• season ticket price can also be adjusted in the hall overview
• set ticket prices in the preparation phase for the season
• requirements for hall relocation are better calculated
• better calculation and display of the expected spectator income
• better calculation of season tickets sales
• rare bug (wrong arguments dialog) fixed with fan merchandise
• relationship messages are no longer displayed when events are switched off
• rponsorship offers are now determined at every new season
• resetting the weekly reports when loading a game
• no more duplicated player
• improvement of translation
• goalkeeping coaches and coaches are always available also in small leagues
• better error interception when games are played without a goalkeeper
• corrected hall type naming for small hall sizes