Added javadoc comment for postQuestion and postSolution.
Merge branch 'master' of github.com:huskysoft/403Interviewer
Checks parameter in postQuestion and postSolution. Changed the exception thrown to IllegalArgumentException.
Checks parameters in NetworkService.java.
Check question and solution has nonempty text/title.
Populate question and solution object with authorId and dateCreated.
Check nonnull category and difficulty.
Merge pull request #101 from kevinloh/master

Javadoc comments for postQuestion and postSolution.
added a lot of tests, implemented getUserId
fixed code review changes
like a boss
Merge pull request #104 from dcs24/master

Tests and getUserId
WIP: getQuestionById()
WIP: Test for Question and Solution CRUD
comments for QuestionServiceIntegrationTest
CRUD for Question, Solution (TDD)
switch to using Lists of questionIds
add test user constant
temporarily use dummy credentials to post questions and solutions