Removed regression keyword

Now users should explicitely remove monopole beforehand
Updated the test suite

added remove_monopole when needed
State that monopole removal is not performed in doc

in anafast and smoothing
Merge pull request #173 from zonca/remove_regression

Remove regression
smoothing should completely honour verbose

`smoothing` was not passing on the `verbose` option to internal calls to `alm2map`
Merge pull request #179 from jrs65/master

Smoothing should completely honour verbose setting
Update INSTALL.rst
Merge pull request #180 from zuoshifan/patch-1

Update INSTALL.rst
Fixed a minor typo in the README file
Merge pull request #181 from rajul-iitkgp/docs_fixes

Documentation Fixes
Docs Update: Made changes in tutorial.rst

Made a few changes in tutorial.rst correcting typos, and improving formatting and phrasing, which came to my notice while I was going through the tutorial.
Merge pull request #182 from rajul/docs_fixes

Docs Update
Remove CPU overheads in _query_disc.pyx.

1. The isnsideok call could take up to 50% of the CPU time for a typical query_* call. Resolved.
2. Allow passing in of a buffer to remove overhead of reallocating memory when repeated query_* calls are made.
3. Switch off bounds checking in pixset_to_array
Remove trailing whitespace
Change RuntimeError to ValueError for consistency with behaviour e.g. of numpy ufuncs. Add unit test for buffer-mode query_disc
Use assertRaises instead of catching exception
Further style changes
Merge pull request #184 from apontzen/master

Improve _query_disc.pyx.