This fixes import issues when it is packaged in conda.

As discussed here:
https://groups.google.com/forum/?fromgroups#!topic/bob-devel/W8Cy-8tamGM

This reverts commit efbaa80f.

Disabled the test failing caused by the numpy version to get the package uploaded to our travis wheel server

This reverts commit 80566479.

This reverts commit 7934e441.

Conflicts:
	.travis.yml

This reverts commit 95a30c5c.

This reverts commit 90826b11.

Fixing issue #12. The test done in the bindings for the acc_statistics method, does not work in 32 bits

A couple of fixes on bob.learn.em.EMPCATrainer:

  - Issue #9
  - Bug in the bindings
  - Fixed documentation

Fixed issue #4

Solved issue #2.