Create permissions file in lib
- Set up permissions rules by checking if the doc exists and if the doc belongs to the current user
- Returns a boolean that will tell us whether or not the current user has permission
Add allow block in post.js
- Allow Posts collection to update and remove documents
- Clients can now update and remove their own posts
Merge pull request #20 from alexanderdavidpan/Setup_Basic_Permission_To_Check_Posts_Owner

Setup basic permission to check posts owner