remove spaces from start/end dates and added return statement in get_user_contrib function
save the new contribs data to User table
Merge pull request #28 from biorainy/master

remove spaces from dates and add return statement
fixed some grammar issues
Merge pull request #29 from biorainy/master

fixed some grammar issues
now can properly display contribution, contrib start/end dates on the page, also fixed saving users to the mongodb
Merge pull request #30 from biorainy/master

changed update back to update_attributes, also fixed problem with unable to correctly retrieve contributions number, now can display contributions, contrib start/end dates properly on page
added current streak data
Merge pull request #31 from biorainy/master

	added current streak data