added code to delete build directories and files; prevents duplicated results from multiple compilations of the same project
added .gitignore file to mask local libraries required for IntelliJ
library file updates merged
Merge branch 'master' of https://github.com/MichaelHilton/CommandLineReplayProject

Conflicts:
	.idea/libraries/commons_io_2_4.xml
	.idea/libraries/json_simple_1_1_1.xml
	CommandLineReplayProject.iml
housekeeping to maintain compatability between version merges of my fork with Michael Hilton's original codebase
removed unnecessary imports on src/edu/oregonstate/edu/Main.java file
refactored build directory cleaning process to work directly with project files found in JSON parser based on locating .project file
modified project directory detection code to use the Java 1.7 Path API, per recommendation from Mihai
all tests, with the exception of one legacy test, are passing and functional
Merge pull request #4 from nelsonni/master

Build Directory Cleaning Functionality