@saleem: initial commit of TirePressurMonitoringSystem + gradle.build + .gitignore
@saleem: Added first test for Alarm
@saleem: new broken test: adding interface ISensor using TDD. This commit at the 'Red' stage of 'RGR'
@saleem: fixed the test: added interface ISensor using TDD. This commit at the 'Refactor' stage of 'RGR'
@saleem: new broken test: adding method popNextPressurePsiValue() to interface ISensor using TDD. This commit at the 'Red' stage of 'RGR'
@saleem: fixed new test: adding method popNextPressurePsiValue() to interface ISensor using TDD. This commit at the 'Green' stage of 'RGR'
@saleem: refactored new test: adding method popNextPressurePsiValue() to interface ISensor using TDD. This commit at the 'Refactor' stage of 'RGR'
@saleem: added tests for high and low threshold
Merge pull request #17 from saleem/master

@saleem's solution for the Tire Pressure Monitoring System, with commit-by-commit details on how the design evolved