Support setDate

Closes #6
Added getErrors to JumblrException (List<String>)

Closes #7
Fix for JumblrException with no errors (ie: 401)
Fix unchecked type warnings
Travis
Added travis to README
No signing if no token
Blogs can not exist on user
Added plugin to pom
Update Post.java to add support for reblog_info

I added support for (some of) the reblog info.
Update MultipartConverter.java

Regarding Issue #12 - in case of using diacritics, like "ó" string length for it is 1, but number of bytes for it is more than 1. That is why we need to count number of bytes for a string, not string length
Merge pull request #13 from thomas2411/patch-1

Update MultipartConverter.java
pom updated for maven distribution
Merge pull request #14 from shakiba/master

Updated pom for maven central repo distribution
Filled out developer section
Merge pull request #10 from raptortech-js/master

Added support for reblog info
Added reblog_info test
Fix a javadoc warning
Added some sources to pom.xml
Added description