Upgrade patchelf
Make 'hit' tool available from Bash in hashstack scripts
Relocateable packages
added pure python memory profiling package
Prepend PKG_CONFIG_PATH in when_build_dependency.

This helps avoiding accidents where we accidentally use
a system package despite specifying a local package.
Add Piranha package
Add the CSymPy package
CSymPy: Use out of tree build

It used to be that the Python wrappers could only be installed using the in
tree build, but now it works out of tree as well, so we use it.
Update ansible to 1.6.5 stable
flex build depends on m4
Merge pull request #333 from jcftang/wip-update-ansible

Update ansible to 1.6.5 stable - tested on mavericks (osx)
Merge pull request #334 from jcftang/wip-flex-depends-m4

flex build depends on m4, on a clean system don't assume m4 is available, so have flex depend on the internal one that hashstack provides
Merge pull request #268 from hashdist/piranha

[WIP] Add Piranha package
Merge pull request #332 from certik/csympy

Add the CSymPy package
Follow the hashdist rename relocateable -> relocatable
Merge remote-tracking branch 'origin/master' into add_memory_profiler
added psutil dependency
add dummy install stage
follow the main -> command_line_entry_point rename
Merge branch 'master' into relocateable

Conflicts:
	pkgs/openssl.yaml