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Started Support for a Settings file,
Removed obsolete library,
added sqlite jdbc driver
Settings Service implemented
Added basic structure for database access
Further improvements for the database and properties file
replaced sqlite driver with jar that is supported by linux;
fixed table creation in database class
Finished ChallengeMapper;
Added a TestMethod in Startup for the mapper;
Fixed Database table creation;
Started SolutionMapper;
Refactored ChallengeSolvingService into a SolvableChallenge Model Object
pushed current state of work
Finished the PersistenceLayer,
Added the ChallengeRepository,
Refined startup
refactored requirement display ui to use a listview instead of a table
created a new package for the requirementcell,
changed the images
Merge remote-tracking branch 'origin/database' into dev
Merge pull request #1 from greenkeeper/dev

Dev