Create .travis.yml

Added travis(travis-ci.org) continuous integration test configurations.
Upadated Pom
Merge pull request #38 from rharishan/master

Upadated Pom
refactoring all pom files structure and cleared warnings
initial spreadsheet dataloading modifications for grade,division,classroom structure
added sonar properties for code quality checking
Merge remote-tracking branch 'upstream/master'