FTL Dat Finding, ftldat: Protocol, and Build Scripts

 * Edited .gitattributes to enforce line endings for certain filetypes.
 * Bundled TWL lib and the Theme Editor.
 * Added batch scripts to build/package and run Overdrive without Eclipse (Eclipse's config and these scripts need to be edited to do the same things, but I don't have the IDE).
 * Improved FTL dat finding to look in standard places on Windows / OSX / Linux.
 * Added a custom URL protocol, so TWL themes can reference images inside FTL dats without extracting first.
 * Added a batch script to launch the Theme Editor with awareness of the new protocol, using classes from overdrive.jar.