Update to sagemath 6.8

sagemath-jmol.patch

@@ -1,22 +1,23 @@
 diff -up src/sage/interfaces/jmoldata.py.orig src/sage/interfaces/jmoldata.py
---- src/sage/interfaces/jmoldata.py.orig	2014-08-12 14:13:57.189963669 -0300
-+++ src/sage/interfaces/jmoldata.py	2014-08-12 14:16:21.359969189 -0300
-@@ -139,8 +139,6 @@ class JmolData(SageObject):
+--- src/sage/interfaces/jmoldata.py.orig	2015-10-11 17:48:03.194792527 -0300
++++ src/sage/interfaces/jmoldata.py	2015-10-11 17:48:39.748793927 -0300
+@@ -146,8 +146,6 @@ class JmolData(SageObject):
+             sage: print os.path.exists(testfile) # optional -- java
              True
- 
          """
 -        # Set up paths, file names and scripts
 -        jmolpath = os.path.join(SAGE_LOCAL, "share", "jmol", "JmolData.jar")
-         launchscript = ""
-         if (datafile_cmd!='script'):
-             launchscript = "load "
-@@ -152,9 +150,8 @@ class JmolData(SageObject):
-         scratchout = tmp_filename(ext=".txt")
-         with open(scratchout, 'w') as jout:
-             # Now call the java application and write the file.
+         target_native = targetfile
+         import sys
+         if sys.platform == 'cygwin':
+@@ -172,10 +170,8 @@ class JmolData(SageObject):
+             env = dict(os.environ)
+             env['LC_ALL'] = 'C'
+             env['LANG'] = 'C'
 -            subprocess.call(["java", "-Xmx512m", "-Djava.awt.headless=true",
 -                "-jar", jmolpath, "-iox", "-g", sizeStr,
--                "-J", launchscript, "-j", imagescript], stdout=jout, stderr=jout)
+-                "-J", launchscript, "-j", imagescript],
+-                stdout=jout, stderr=jout, env=env)
 +            subprocess.call(["jmol","-n","-g",sizeStr,
 +                "-J",launchscript,"-j",imagescript],stdout=jout)
          if not os.path.isfile(targetfile):