Implement URL encoding rules for DB url

[vaibhavdobriyal]

#15 just involved handling for '@'.

Potentially full fledged URL encoding may be implemented.

Reference: http://www.blooberry.com/indexdot/html/topics/urlencoding.htm

[retrography]

Are you willing to have a stab at this, @vaibhavdobriyal?

[vaibhavdobriyal]

Yes I can give it a shot in near future; if we agree on the value this enhancement may deliver.