Upgrade sagenb to 0.9.1

[kini]

This is a followup to #11080. During the review process of #11080, which stretched for quite a while, at some point we decided to have a feature freeze on the version of sagenb 0.9.x associated with #11080, just to simplify the review process. The purpose of this ticket is to incorporate some new features, bugfixes, code refactoring, etc. into the version of sagenb shipped with Sage, beyond what was reviewed in #11080. sagenb 0.9.1 contains the following (among other things):

• refactoring of the startup code, uWSGI and Tornado added as possible WSGI servers
• code allowing .sws files to be uploaded by supplying a URL pointing to the .sws as an argument to the upload page's URL
• new dependency on webassets for js/css autominification (not currently used in the master branch)
• the mathjax branch, and a doctest fix in sphinxify.py (#9774 depends on and contributed to this)
• support for uploading .sws files from the local disk via the command line (#8473 basically is this)
• refactoring of sageinspect to not have a duplication of code between the notebook and the Sage library (#11913 depends on this)
• Upgrading Jmol again and allowing for advanced interactive features more easily, solve some memory issues (#12299)

Changes not in sagenb itself but in how sagenb is incorporated into sage:

• No repository will be installed with sagenb - developers will need to clone sagenb themselves and install the new clone into their Sage installation manually (which is not difficult).

SPKG: ​http://wstein.org/home/keshav/files/sagenb-0.9.1.spkg (a comparatively svelte 13 MB)

cd SAGE_ROOT
cd local/bin
hg qimport -P http://trac.sagemath.org/sage_trac/raw-attachment/ticket/9774/trac_9774-scripts-mathjax.patch
cd ../../devel/sage
hg qimport -P http://trac.sagemath.org/sage_trac/raw-attachment/ticket/9774/trac_9774-mathjax-try6.patch
hg qimport -P http://trac.sagemath.org/sage_trac/raw-attachment/ticket/11913/trac_11913-sage.patch
hg qimport -P http://trac.sagemath.org/sage_trac/raw-attachment/ticket/12299/trac_12299-all-in-one.patch
cd ../../
./sage -br

[kcrisman]

See ​this comment on github pull request 64 to confirm that #12299 will be in 0.9.1.

[kini]

I've released 0.9.1. The SPKG is ​here. Please test and review!

[jhpalmieri]

In spkg-install, the check

if [ -n $SAGE64 ]; then

needs to take into account that $SAGE64 may be set to "no". According to SAGE_ROOT/spkg/bin/sage-arch-env, it should be unset, "no", or "yes", so you should test that it's set to "yes".

[jhpalmieri]

You should also take ​this possible change to CPPFLAGS into account. For example:

spkg-install

@@ -17 +17 @@
 export CPATH="$CPATH""$SAGE_LOCAL"/include
 export LIBRARY_PATH="$LIBRARY_PATH""$SAGE_LOCAL"/lib
 
-export CPPFLAGS="-I$SAGE_LOCAL/include $CPPFLAGS"
+export CPPFLAGS="-I$SAGE_LOCAL/include $CPPFLAGS -D_XOPEN_SOURCE=500"
 export LDFLAGS="-L$SAGE_LOCAL/lib $LDFLAGS"
 
-if [ -n $SAGE64 ]; then
+if [ $SAGE64 = "yes" ]; then
     echo "Building with extra 64-bit flags for MacOS X and Open Solaris."
     if [ -z $CFLAG64 ]; then
         CFLAG64=-m64

(even better, with a comment explaining why CPPFLAGS has been changed)

[jhpalmieri]

With these changes, this spkg builds on OS X Lion, sage.math, hawk, and skynet machines mark (after installing the openssl spkg from #13126), cicero, iras (with openssl), silius (with openssl), and taurus. So it's looking good to me.