Merge pull request #11 from sstupka/master

Images added
Renamed xmlgenerator to generator. This script now generates the xml and java code for each independent activity. Bugs are known to be present, so do not overwrite the core project files with these generations yet. Still need to generate code to integrate activities into the main screen. I might add a database entry for the main screen entry.
Merge branch 'master' of https://github.com/novellus/SoftEng-Project
Bug fixes. Moved generator and test database to PhysicsSolver2 directory. Appears to be working completely now. Core project files have been replaced with database generated pendulum activity. Still need code for integration of activities into main activity list, but database entry has been added for each activity. Activity entries now include a 4th entry which is the title of the activity in the main screen. Although the generation works for this activity, the codebase was already setup to have an activity there, and by that name, so there may still need to be work done annotating random other source files for each new activity, because java.
Update Database Readme.txt
Added description for equations.
Added physics equation images