Added copyrights to all .r files.
install.URL - made sure to exit the function if it could not download the file
install.git - works again. The guys there moved git from googlecode to github.
Added the file kill_pid.r

With the new functions:
   * get_pid - get the process id by its name
   * kill_pid - kills the process of all the scripts with some pid
   * kill_process - kills process with some name
   * get_tasklist - returns a data.frame with the current running processes. Windows only.
   * get_Rscript_PID - returns all of the process IDs (i.e.: PID) of the Rscript.exe that are running. Windows only.
   * kill_all_Rscript_s - kills the process of all the Rscript.exe that are running (you can schedule how long it should wait before doing it). Windows only.
version bump to 0.15.1
install.pandoc - fixed and now works again.