Updated git ignore file to ignore build directories, added missing pro.user file
* Added process class, representing a single process
* Implemented more object oriented way of acquiring processes
Implemented new object oriented way in gui, added support for started-as path for each process
Added Boost C++ library 1.55 to the dep list
Merge pull request #1 from Photonios/master

Cleaned up, and implemented more OOP way of acquiring processes, implemented support for the command that the process was started as