Added contains method
Added equals, hashCode to Counter
Added equals Theory to CounterTest
Moved client setup to new @BeforeClass setup() method
Minor update to Counter
removed sum field
Changed parameter type on get from K to Object
Changed internals of add
Changed parameter type of contains to Object
Updated README to show current build status
Changed int to long
Possibly fixed compile bug in dereferencing
Updated README build status picture to have link to project
Updated Counter to change line number of broken line
Added import for JUnit Theories
Added BeforeClass import
Added static imports
Removed duplicate @RunWith
Fixed JUnit calls, added import
Made setup and tc static, as required