Before, programs using open_file_url (such as Terminal) would
fail to open any file if its extension (or mime type) wasn't
specified in LaunchServer.ini. This patch now permits it.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.
See: https://spdx.dev/resources/use/#identifiers
This was done with the `ambr` search and replace tool.
ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
This small commit should allow to specify additionnal parameters in the
form of URL queries, when opening a file via a "file://" url through the
LaunchServer.
