Add pagination with kaminari

Every 10 TIL will be used for paginate
Merge pull request #40 from jmoon90/paginate

Add pagination with kaminari
Add delete button for learning also fix edit now showing for learning owner

In the views even if the learning belonged to current_user “Edit’
button wasn’t showing up.
Merge pull request #41 from jmoon90/upgrate_til

Add delete button for learning also fix edit now showing for learning ow...
Remove email address so that people can't spam other people
Update Readme file to describe what it does and explain further
Update readme styling
Fix broke link
Add gravatar image to edit profile page
Merge pull request #46 from jmoon90/user_profile

Add gravatar image to edit profile page
Feature to sort by tutorials in addition to existing sorting
Merge pull request #49 from jmoon90/sort_tutorial

Feature to sort by tutorials in addition to existing sorting
Change styling of group index page
Change border size and add Last Active time
Add div tags around border
Fix broken alyout
Made navbar bigger aligned text in home page
Merge pull request #50 from jmoon90/style_group

Made navbar bigger aligned text in home page
Change navbar size
Fix last active if there are no post it checks for group last activity