Merge pull request #1 from satish28/master

 Added a new file check_dependencies
changed file name 'check_env' to 'check_dependencies'
new entry in .gitignore
file rename and calc_time added
file rename and calc_time added
Merge branch 'test' of https://github.com/Dineshs91/crawler into test
file rename
readme updated
updated readme
method names changed
updated readme
code refactored and changes done according to PEP8
Merge branch 'test' of https://github.com/Dineshs91/crawler into test
updated readme
moved util directory inside crawler
Merge remote-tracking branch 'Diff_Branch/test'

Conflicts:
	.gitignore

update