Now requires the `axes=` argument.
Changed indexing `method=` to "numpy", "exact", "nearest", "interp"
Changed Tests.ipynb to Tutorial.ipynb and started to simplify in
Dimarray changed to DimArray
axis as keyword arguments removed from basic DimArray definition, and
class method from_kw added with array as alias
added test() method to dimarray/core/core.py
testing: test_all function in progress
core.py, axes.py, metadata.py, _indexing.py and _reshape.py now pass
tests
added kw indexing in separate method take_kw with no risk of conflict
with other parameters
can now do tuple (multi-dimensional) indexing with take, old tuple
definition as slice alias removed (also enhance clarity)
fixed docstrings in core/_reshape.py
fixed minor bugs
Merge branch 'master' into dev (was forgotten!)

Conflicts:
	Tutorial.ipynb
	dimarray/core/_indexing.py
	dimarray/core/axes.py
	dimarray/core/core.py
	dimarray/io/nc.py
Locator_axis and Locator_axes, wrote `put` method and rewrote a big
chunck of the _reindexing.py module
modified core to da
major changes to `take` parameters, needs debug
lots of debugging done, still needs to fix a few bug in _indexing
docstring
being debugged, but too complex: about to reduce complexity
simplified everything:
for now removed "nearest" and "interp" modes from take
need to implement them as reindex_axis
indexing rewritten and simplified
take only has "indexing" parameter to "position" or "values"
interp method distinct from reindex_axis