TST: Add test for in1d ravelling

The behavior of in1d is not really defined here, but it should
be at least consistent over different execution branches. This is
what it has been for most usages.
MAINT: test_deprecations.py cleanups.

Removed unneeded imports, corrected spelling, and put C function
references in double back-ticks.
MAINT: Update and cleanup 1.7.0-notes.rst.

The master branch version had diverged from the release branch.  This
brings them back into sync, adds a mention that Python 2.4 - 2.5 support
has been dropped, corrects spelling errors, does some reformatting, and
removes trailing whitespace.
MAINT: Cleanup 1.8.0-notes.rst.

Remove contents of 1.7.0-notes that were left when it was copied,
note that support for Python 2.4 - 2.5 has been dropped, and note
deprecation of non-integer indices.
DOC: Note that Euler's constant is exposed in numpy 1.8.0.
Merge pull request #2779 from charris/add-euler

Expose the Euler-Mascheroni constant
Fix unicode tests for flexible string representation on Python 3.3
TST: Add tests for constants.

Test the values of np.pi, np.e, and np.euler_gamma to make sure
they are correct to relative tolerance 1e-15.
Merge pull request #2834 from charris/cleanup-1.7.0-notes

MAINT: Update and cleanup 1.7.0-notes.rst.
Merge pull request #2835 from charris/update-1.8.0-notes

MAINT: Cleanup 1.8.0-notes.rst.
Merge pull request #2833 from charris/fix-deprecation-tests

MAINT: Refactor test_deprecations.py
Merge pull request #2818 from juliantaylor/spelling

fix a spelling error
Merge pull request #2836 from cgohlke/patch-2

Fix unicode tests for flexible string representation on Python 3.3
Merge pull request #2710 from jsalvatier/mapapi3

MapIter API 1d iteration fix and tests
TST: Replace Python 3.1 test with 3.3.

Travis does not support 3.1 anymore, but supports 3.3. See:

https://groups.google.com/d/topic/travis-ci/02iRu6kmwY8/discussion
Merge pull request #2800 from seberg/issue2755

BUG: Fix regression for in1d with non-array input
ENH - .mailmap file to harmonize git shortlog

Reduce duplicates in git shortlog
Merge pull request #2852 from matthew-brett/add-mailmap

ENH - .mailmap file to harmonize git shortlog
Fix invalid typestring size

Revert to pre numpy 1.7 behavior where invalid typestring size was ignored and isplay deprecate warning. This warning should eventually be changed to an error in future numpy versions.
Refactor to cover more cases; modify unit tests