Refactor the import from brian2 so that "from brian2 import *" imports also the pylab/scipy namespace. To only import brian2 symbols, use "from brian2.only import *"
Add a new `brian2.numpy_` module for easier import and document the various options of importing brian2
Use a consistent "from brian2 import *" style in the examples. Closes #167
Mimick the numpy import behaviour more closesly in brian2.numpy_: "np.max" should yield the numpy version but "from brian2.numpy_ import *" should not import it (to not overwrite the builtin function).
Merge pull request #188 from brian-team/wildcard_import

Wildcard imports