* Use "lib" in tsconfigs instead of "target".
Only add "dom" to libraries that need it. This is determined by a script, so many libraries that have "dom" maybe should not.
* Update new-package and readme
* Add back "target" where necessary
* Added declarations for content-disposition
* Fixed missing semicolon
* Added empty function
* Made ContentDisposition an interface instead of a class
* Filename may be undefined but not void
