Passed test 1....
Serialized links....
Made the second test pass
Test 2 passed.....
moved model to appropriate file....
Added threading
Some changes
Few changes
Merge pull request #2 from karthiksenthil/master

Test 3 is passed !! Thank Karthik
Test passed for starting crawler
Test 1 done... I think...
All tests pass....
Made changes in the table names, columns for db
changed migratedb.rb to remove the method migrate
Finally, all tests done..... with migrations
Removed unneccessary requirements
All the 3 tests working
Merge pull request #4 from mitesh-mutha/master

Solved the issue 1
added sqlite gem in gemfile
Test 4 added