added boolean field 'endorsed' to Post

[evelynnchen-cmu]

Resolves #24

Added a boolean field named 'endorsed' to a Post. I modeled it off of Post's other boolean fields like deleted.

Able to see the "endorsed" attribute when you go to localhost:4567/api/topic/#

The following files were changed because existing tests were failing:

• src/posts/create.js: Endorsed is default set to false
• src/posts/data.js: Added it as a field and checks if post has it as its own property
• src/posts/user.js: Added it to getPostsFields as it is a new field in post
• src/search.js: Was getting errors in api/serach so added it as a field to postFields
• src/topics/create.js: Defaults to false if posts.endorsed is undefined
• src/topics/fork.js: Added it as a field to getPostFields.

[coveralls]

Pull Request Test Coverage Report for Build 11206960947

Details

• 10 of 10 (100.0%) changed or added relevant lines in 7 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.004%) to 82.691%

---

Totals
Change from base Build 11021287134:	0.004%
Covered Lines:	22342
Relevant Lines:	25598

---

💛 - Coveralls

[vickyc2266]

LGTM!