Fixes several files incorrectly stated a different license from the actual project, as well as the copyright headers included in all files. This change has no effect on the licensing terms, it should clear up a bit of confusion by contributors. Plus the files get a bit smaller, and we have less duplicated information across the entire project.
Overall the project is GPLv2 if not built with Qt, and GPLv3 if it is built with Qt. There are no parts licensed under a different license, all have been adapted from other compatible licenses into GPLv2 or GPLv3.
Slightly relaxes the necessary amount of memory, as we are no longer loading everything all at once. Also for unknown reasons git interferes with other git processes running in the same repository only on Linux. This causes Linux runs of this tool to have strange issues detecting the authors, as git just quits with a success error code. Fun.
This tool aids in the proper upkeep of copyright headers for changes contained within this repository. It will generate a new header, or replace the original one if one exists. As this task has often been forgotten by both developers and contributors, having a tool manage this will hopefully improve the situation.
The choice of Node.JS for this tool was deliberate, as many developers and CI solutions already have Node.JS in a reasonably up to date version installed. Additionally the versatility of Node.JS eliminates the need to create custom or platform specific solutions for tasks that are relatively simple. While the performance is not ideal, it still completes its task relatively quickly.
