Bump version number
Remove patch that is now in upsteam
Update/clarify prereqs for development

These changes clarify and present a little
better the presentation of how to get started
in Sage development, particularly the annoying
process on Mac.
Reorganize and clarify Xcode download situation
trac 17xxx three little typos
Remove work-around for GCC bug fixed in GCC 4.9.0
Small fixes to installation manual
A little more structure to installation guide
Disable isl/cloog on Darwin
Never use gcc-4.6.* if found on the system
Remove stray line
Trac #17262: Update to gcc 4.9.2

Upstream tarball: ftp://ftp.mirrorservice.org/sites/sourceware.org/pub/g
cc/releases/gcc-4.9.2/gcc-4.9.2.tar.bz2

URL: http://trac.sagemath.org/17262
Reported by: vbraun
Ticket author(s): Volker Braun
Reviewer(s): Jeroen Demeyer
Trac #17266: a typo in main index

Correction for some small typos in the doc, including a prominent one in
the main index.

URL: http://trac.sagemath.org/17266
Reported by: chapoton
Ticket author(s): Frédéric Chapoton
Reviewer(s): Nathann Cohen
Trac #17255: Update developer and installation guide even more

#17112 was some needed reorganization of these resources.  This ticket
continues the process, especially by emphasizing direct steps for Mac.
This was inspired by an email exchange with a nearly-thwarted would-be
developer and the steps she took.

URL: http://trac.sagemath.org/17255
Reported by: kcrisman
Ticket author(s): Karl-Dieter Crisman
Reviewer(s): John Palmieri, Jeroen Demeyer