Merge pull request #2 from HaoranHuang/develop

add isorigin feature
add comments for Sam code
Merge branch 'develop' of https://github.com/FlightFinder/OAG_Schedule into develop
Merge pull request #3 from samzhao88/develop

Add comments for Sam's code
Merge pull request #4 from HaoranHuang/develop

added comment for Controller, add error handling code for FinderSteven.j...
add comments and fixed duplicate non-stop flights bug
Merge branch 'develop' of https://github.com/FlightFinder/OAG_Schedule into develop

Conflicts:
	src/main/java/service/Controller.java
Merge pull request #9 from snickers2029/develop

fixed bug and added comments
no changes