Integrate all 3 parts of the 2nd assignment

[So-Cool]

1. In part 2, in wp.pl file there is unicode N-hyphen that has to be removed

[So-Cool]

The integration of all parts of the Assignment 2 (and 1) is finished. You can download the latest version here.

@flach, could you please test all the parts and edit readmes wherever necessary:

• General readme
• Assignment 1 readme
• Assignment 2 readme

To run the assignment do:

• ./ailp.pl assignment1, or
• ./ailp.pl assignment2 partN, where N is 1, 2, 3 or 4.

Student's solution should go to assignment1_12345.pl, assignment2_12345.pl (parts 1, 3 and 4) and assignment2_wp_12345.pl (part 2).
Once the readmes are checked I'll move them to wiki and create FAQ section.

[So-Cool]

All the assignment parts are now integrated and they seem to be playing well.
The next stage is to unify them in a sense that all the parts use channel communication (as in part 4).