Submissions implemented

Submissions subreddit posts retrieval implemented
Small change in pom file
Added more comments in Thing
Added JavaDoc to User
Removed unnecessary overrides in UtilResponse
Added new Submissions example
Implemented search method for submissions
Fixed test for getLimited
User submit now supports captcha's
Fixed Captcha tests
Update PostExample.java
Subreddit get/search implemented

Added implemenation for Subreddit search and retrieval
Made some adjustments in inheritance of Thing (Subreddit now is, User is
not)
'Banned' is not a subreddit ordering
Added test cases for subreddit get (search still needs to be tested)
Test case for Submissions search
Initial commit (add)
Initial commit
Added recursive parsing to Comments

And removed username/password combination from the examples (updated on
reddit, they are old)
Extra examples, extra tests

Small changes to Submissions / Comments as well.
Now handles sticky posts correctly.
Added extra example and user submissions retrieval
Fixed bug with 403 and null returns
Restructure of packages
New exceptions and actor driven classes
Fixed tests - more need to be written
Added exception catching in the examples
Small exception throwing adjustments
Implemented SubmissionsTest

And added empty ones, which will follow shortly