#15137: Implement right-angled Artin groups and general Coxeter groups.
Fix memory leak in qqbar.ANRoot._interval_fast()

sage.rings.qqbar.ANRoot._interval_fast() used to create new interval fields by
type(self._interval.parent())(prec), thus bypassing the cache provided by
RealIntervalField().
Doctest syntax
trac #15494: Deprecate the graph "boundary" parameter
fast Shuffle product compatible with iterable objects (use linear extension)

ticket 15595

fast Shuffle product (use linear extension) compatible with iterable objects.

ticket 15595

append licence GPL

delete a wrong test
No longer use testjava.sh script
Remove testjava.sh from jmol package
trac 11215 a pairing between cusp forms for Gamma0(N) and elements of Gamma0(N)
trac #11215 minor changes according to review
trac 14004 Implementation of nonnesting partitions for Weyl groups
trac #14004 add documentation, still needs work
Merge branch 'public/groups/15137-raags' of trac.sagemath.org:sage into public/groups/15137-raags

* 'public/groups/15137-raags' of trac.sagemath.org:sage:
  #15137: Implement right-angled Artin groups and general Coxeter groups.
Changed to use new immutable graph backend.
Made changes and expanded documentation.
Added FP group and gap to raag.py.
prevent increased degrees in eliminate_linear_variables()
Merge branch 'develop' into public/groups/15137-raags

* develop: (107 commits)
  Updated Sage version to 6.1.beta5
  Don't use "missing"
  trac 15265: various changes, finishing review.
  allow disabling of maintainer mode
  trac 15265: Additional change to farey.cpp.
  trac 15265: Minor changes to farey_symbol.pyx
  trac 15265: Minor changes to sl2z.cpp and sl2z.hpp.
  trac 15265: Minor changes to farey.cpp and farey.hpp.
  Run "missing" using bash
  fix tarball url
  trac 15265: Add some further examples and one test to _acton_ of elements of arithmetic groups.
  Source sage-env inside configure
  Improved Karatsuba: more thorough tests
  bootstrap configure: small fixes
  make saving of the confball optional in bootstrap
  fix typos in SPKG.txt
  also commit changes to confball in sage-update-version
  add a SPKG.txt file
  rename to bootstrap, run during version bump
  trac 15265: correct mistakes done while converting to git branch.
  ...
Merge branch 'public/graphs/complement-15699' into public/groups/15137-raags

* public/graphs/complement-15699:
  Made complement of an immutable graph be immutable. Fixed doctest due to merging #15681.
  trac #15681: Name of immutable graphs
  Fixed doctest output.
  Fixed complement for immutable graphs.
  trac #15623: Removing the hack from #15622, update a variable's name
  Trac 15623: Let to_graph return an immutable graph
  trac #15623: Immutable graph backend for Posets
Merge branch 'public/graphs/complement-15669' into public/groups/15137-raags

* public/graphs/complement-15669:
  Changed hasattr to getattr.
  trac #15699: fix hasattr in generic_graph.py.
  trac #15681: New doctest for name() on immutable graphs
  trac #15681: A doctest for the bugfix
Fixed doctest from merge.