Battle of Britain remake of PSS game CodeSVN

Using new extended constructor (added in previous commit) to create new squadrons. Added reading extended data from file to meet the needs of extended constructor

Changes to squadron class. New constructor with all needed data (is not being used yet)

Changed map graphics again to more precisely reflect area of original game map (little edited previous map). New map size is 1254x858

Changed map graphics to more minimalistic (more similar to original game map). New map size is 1200x800

Testing drawing of multiple squadron positions. Squadrons' positions are read from file and written to linked list - number of squadrons isn't fixed now, it depens on how many records is written in file "squadrons.txt"

Testing drawing of multiple squadron positions. Squadrons' positions are read from file and written to linked list

Testing drawing of multiple squadron positions - as black ovals with coordinates taken from an linked list

Testing drawing of multiple squadron positions - as black ovals with coordinates taken from an array. Needs a method to pass squadron positions from Squadron class to Map class

Draws position of a single squadron (as a black rectangular at 600,300). Needs to be rewritten to array of squadrons

somewhat better use of graphics (loads and shows a map of south Britain)