Merge branch 'develop' of https://github.com/LLNL/spack into features/install_with_phases

Conflicts:
	lib/spack/llnl/util/tty/log.py
	lib/spack/spack/__init__.py
	lib/spack/spack/cmd/install.py
	lib/spack/spack/cmd/setup.py
	lib/spack/spack/package.py
	var/spack/repos/builtin/packages/blitz/package.py
	var/spack/repos/builtin/packages/gmp/package.py
	var/spack/repos/builtin/packages/qhull/package.py
	var/spack/repos/builtin/packages/szip/package.py

lib/spack/llnl/util/tty/log.py

@@ -37,6 +37,7 @@
 # Use this to strip escape sequences
 _escape = re.compile(r'\x1b[^m]*m|\x1b\[?1034h')
 
+
 def _strip(line):
     """Strip color and control characters from a line."""
     return _escape.sub('', line)
@@ -59,10 +60,10 @@ class keyboard_input(object):
     When the with block completes, this will restore settings before
     canonical and echo were disabled.
     """
+
     def __init__(self, stream):
         self.stream = stream
 
-
     def __enter__(self):
         self.old_cfg = None
 
@@ -87,10 +88,9 @@ def __enter__(self):
             # Apply new settings for terminal
             termios.tcsetattr(fd, termios.TCSADRAIN, self.new_cfg)
 
-        except Exception, e:
+        except Exception:
             pass  # Some OS's do not support termios, so ignore.
 
-
     def __exit__(self, exc_type, exception, traceback):
         # If termios was avaialble, restore old settings after the
         # with block