updating to remove assembla and hg references

- Deleted hg_primer.txt and reference to it in the documentation
- Updated release instructions (although those may need to be revised to
  use the new recommended git workflow)
- Removed reference to theano.__src_version__() that does not seem to
  exist anymore (note that there is however a hg_version function in
  setup.py that will need to be updated for git at some point)

bringing in min_informative_str to printing.py

the module level docstring of test_printing actually described the only
test in the file
I wrote a more appropriate module level docstring and moved the existing
docstring into the test itself

min_informative_str

Small fixes to AdvancedSubtensor1 and CVM.

adds 1d advanced indexing support to inc_subtensor and set_subtensor.

AdvIncSubtensor1 - better error message in make_node when incrementing a selection of lower rank, and test of that error condition

Remove annoying raise_with_op behaviour, document.

Fixed documentation about FAST_COMPILE mode to match its actual implement

This adds a docstring for raise_with_op and also modifies its behaviour
somewhat. Previously, the exception was re-raised with a different
'args' member -- namely, in addition to the exception message it added
two new elements to the tuple: the Op itself and a string telling you
where in the graph the corresponding Apply node appeared.

This gets in the way if you want to have an exception message containing
formatting (newlines and tabs), since the entire tuple is printed, and
the formatting on the string is not rendered.

I've never seen the Apply node index be of use to anyone debugging, but
my proposed solution is to stash that information in __op_instance__
and __applynode_index__ on the object instead of in the args tuple.
I would not be against appending to args[0], the exception message,
with applynode information, but this is easy enough to obtain at the
pdb prompt with my modifications.