Limit version of numpy to be 1.5.1 <> 1.7.1
Merge pull request #224 from ElDeveloper/numpy_fix

Check version being used in numpy
Release 0.9.3

Change __version__ strings to 0.9.3, __status__ strings to Release and
updated the ChangeLog.md.
Merge pull request #225 from ElDeveloper/release_0.9.3

Release 0.9.3