Sandbox makefile: wraped a comment paragraph.
Added *.autosave to .gitignore.
Sandbox makefile: XZ depends on libiconv. That is too much sprawl for a bootstrap.
Sandbox makefile: promoted archive types.

- Where possible, chose xz > bz2 > gz > zip.
- Modules that are required to build tar and xz are < xz.
Sandbox makefile: Fixed alpha ordering in versions list.
Sandbox makefile: updated md5s for new archive types.
Sandbox makefile: Moved patches from bootstrap to dedicated module.
Sandbox makefile: Restructured includes.
Sandbox makefile: renamed included makefiles.

- Changed from makefile\.(.*) to &.mk.
Originally I was using makefile.* because that was all qtcreator
would reasonably detect. I modified the glob pattern it uses to
see .mk as makefiles and all is well in the world.
Sandbox makefile: Updated included filenames.
Sandbox makefile: decompressing->verified dep is now order-only.
Sandbox makefile: Small comment update about patches.
Sandbox makefile: Ordered patches by alpha.
Sandbox makefile: Added patch for libiconv's gets().
Sandbox makefile: Added note about generalizing how patches are applied.
Sandbox makefile: Removed references to bootstrap in patches.
Sandbox makefile: Moved builds include to after patches.
Sandbox makefile: Special case builds now listed before common build.
Sandbox makefile: Segregated standard-build GNU packages and special cases.
Sandbox makefile: Added empty deps for each package, to be filled in later.