Simplify copy method
Removing some warnings when compile with -Xlint
Readding comments
Readding comments
Changing copyright
Simplify code
Add unit tests
Remove useless parenthesis
Use static fields
Use static fields
Add -Xlint for tests
Change methods to private
Change methods to private
Use clone method and Cloneable interface instead of copy method
Add methods
Fix issue
Implement getEdges using iterator
Implement getSinks and getWells using iterators
Add csv reader and writer for Context
Add some enhancements to ContextReaderCsv