Windows Python3.2: Fix, on 64 bits the hashing was not working properly.

* This could result in errors when accessing global variables.
Python3 Compatibility: The error messages for not subscriptable errors was not matching.
New hotfix release.
Merge branch 'hotfix/0.5.1.6'
Merge tag '0.5.1.6' into develop
Minor cleanups
Standalone: Remove "RPATH" from shared libraries included.

* On some distributions, at least Fedora 20, a few libraries have the
  RPATH set, forcing it to prefer system libraries in preference to the
  included ones, if found on that path.

* This made the tests fail, and could potentially cause problems and is
  of course against the spirit of standalone.

* Uses chrpath to remove the path. That is available as a package with
  "yum install chrpath" on Fedora 20. A Debian package also exist, but
  no library ever had this.

* Information is giving with --show-inclusion option.
Python2.7: Fix, the assert statement value as a tuple is only for >= 2.7.3
RPM: Need to depend on rpath changing utility for the tests.
Cleanups

* Applied isort to all source files, harmonizing the format of import statements.

* PyLint stuff

* Packages should do relative imports to themselves only

* No up imports "from .."
Debian: Delete old files in repository, so it is easier to scan.
Tests: Added benchmark constructs, to used to create performance comparisons.
Changelog: Document changes in this release cycle.
Standalone Tests: Added test case that uses ctypes.

* No problems, just for future coverage
New pre-release.