Remove the blas and lapack spkgs (provided by atlas now); deprecate sage_fortran
Update the installation guide for ATLAS 3.10.1
#14692: Fix hardcoded 'make' in upstream build scripts; minor clean-up; refactor patches.
Trac #14754: Do not use 3DNow in configure_base()
Trac #14781: move untracked files to src/ in preparation for git
Added spkg-src to populate the src/ directory
Remove the archdef_dir variable, we already copy our own archdefs into src/
Trac #14754: Match other isa_ext level to existing archdefs too, if possible.
Update to latest upstream, remove untracked files
#14692: Add spkg-src and track all files
* #14737: Fix and simplify generation of `factory/cf_gmp.h`
  (by adding `patches/sanitize_gmp_header_hack.patch`).
* Add spkg-src and track all files
Document new SAGE_ATLAS_ARCH options.
Use existing cliquer function instead of parse_input hack
Original patch by Bernhard R. Link <brlink@debian.org>
Trac #14892: Track all patches, remove unnecessary graph.c.patch
fix typo
Merge 'Trac #14781' into master
Merge branch 'master' into build_system

Conflicts:
	build/deps
	build/pkgs/atlas/.hgignore
	build/pkgs/cliquer/.hgignore
	build/pkgs/mpfr/.hgignore
	build/pkgs/ntl/.hgignore
	build/pkgs/singular/.hgignore
[FIXUP] Trac #14781: update git specific files

These currently include
 * VERSION.txt
 * package-version.txt
 * checksums.ini