Webapp fix

[bhargav]

• Updated content for Email Spam, Drug Response and Edison Features app.
• @danyaljj fixed the issue with Logger error during compilation.

Pending:

• Webapp unit tests are failing. Will investigate today.

Towards #381

[danyaljj]

Looks good to me.

[kordjamshidi]

I think: please make the main fix which is about failing tests before merge.

[danyaljj]

This PR will make the webapp temporarily functional.
Current webapp has significant issues that need to be addressed (e.g. #398) as well as the better tests to ensure the correct functionality.
I would suggest moving on with this PR, and addressing other issues in future PRs, step by step (as long term goals).

[kordjamshidi]

are the tests failing due to #398 ?

[danyaljj]

are the test failing due to #398 ?

The tests are not failing because of that issue. They are failing due to some injection issue (which I am not sure how to fix). But that is not the point; Look at the current tests: https://github.com/IllinoisCogComp/saul/tree/master/saul-webapp/test
Currently our webapp tests, have literally NOTHING. Even if these tests work, they ensure NOTHING.
We first have to add good/high-coverage test. And if we don't fix #398, we won't be able to have any meaningful tests.

[kordjamshidi]

Okaayy.