Renamed itemAction to taskName. All method names are modified
accordingly.

Added in-memory unit testing for the model.
implemented commandcontroller

can add, delete, display, exit, and search
Included test for file load. Trying to pass testFileLoad.
Merge remote-tracking branch 'origin/master' into jolly/gui
updated commandcontroller

to work with update method name, getTaskName
Pushing /lib for JUnit 4
Merge remote-tracking branch 'origin/dat/model' into jolly/gui
updated junit libs/jars
Moved ModelUnits.java to app/tests. Still trying to pass testLoadFile
Passed testLoadFile! It is a smelly error
Merge branch 'master' into dat/model
fixed merge conflicts