Done with step 5. Added new subdirectory with SimpleGui1.java and edited the code
Added files to directory and changed package name
Step 8 done. Added snowman's head
Step 9 done
Added class to draw a basic car shape using rectangles, lines and circles
Created class to extend car class
Working on CarWithTrailer
Edited car class and improved car with trailer class
Different designs of cars and cars with trailers implemented
Changed javadocs
Merge pull request #2 from maperghis/master

| Item | +o?- | Poss | Pts | Summary | Comments  
|------|-------|------|-----|-------------|-----------
| SG   |    o   | 20   |     | SimpleGui1 text/color change |
| SN   |    o   | 40   |     | Snowman has head     |
| C1   |    o   | 20   |     | Two classes draw obj in own package      |
| C2   |    o   | 20   |     | extend GPW, impl Shape |
| C3   |    o   | 50   |     | one class inherits other    |
| C4   |   o   |  40  |     | constructor inits GP obj  | 
| C5   |   o   |  40  |     | obj drawn recognizable (look at the drawing!) | 
| C6   |   -   |  40  |     | good code style (look at the code!) | Missing some javadoc params
| GP   |   o   |  30   |     | following instructions |