Added support for notes
Minor changes - removed a useless comment and some whitespace
Replaced tabs with spaces
Replaced a tab with spaces
More whitespace changes
Edited Post.java to handle concers about copying and nulls

Maddalab suggested (https://github.com/tumblr/jumblr/pull/21/files#r5741882) that because I didn't actually use the reflection, it would be better to use System.arrayCopy. jay-to-the-dee suggested (https://github.com/tumblr/jumblr/pull/21/files#r5763924) that when notes is null, it would throw a NullPointerException. I believe I have fixed both of these issues.
Updated Post.java

System.arraycopy does not have an uppercase C. Thanks to jay-to-the-dee for finding this (https://github.com/tumblr/jumblr/pull/21#issuecomment-22645805).
Merge pull request #4 from raptortech-js/notes2

Added support for notes