The year is coming to an end.

This commit includes a lot of changes. They are as follows:
1. All copyrights have been updated for the upcoming 2014 season.
2. The acknowledgements.rtfd file has been replaced with a pdf version that includes greater details on all licensed code that Textual uses. It was updated to try and provide greater transparency on what Textual uses and also to properly acknowledge all projects Textual has contributed from.
3. The old contributors.rtfd file has been removed. This is in no way a show of disrespect to any one who was listed within the file. It just seemed unnecessary since it did not include all the actual people who contributed so why not allow GitHub to list all of them for us instead.