Added additional functions to JNumeric

Added:
- numeric.random.normal (http://docs.scipy.org/doc/numpy/reference/generated/numpy.random.normal.html)
- numeric.linalg.norm (http://docs.scipy.org/doc/numpy/reference/generated/numpy.linalg.norm.html)
  - Note: Current implementation does not support ord='fro'
  - Note: TODO - ord = 1, -1, 2, -2, and other cases for vector norms have not
          been implemented. Have to find a workaround for calculating an
          integer to a negative power.
  - Note: TODO - ord = 2, -2 for matrix norm have not been implemented.
- numeric.linspace (http://docs.scipy.org/doc/numpy/reference/generated/numpy.linspace.html)