Added bufr reader and dataset base classes from internal datapool to
pytesmo
Updated documentation and added example for reading H-SAF images, moved
examples to examples directory
changed api to not automatically import everything
added resample method, colormaps loading method and hsaf readers,
including tests and testdata
do no longer import everything
updated for version 0.2.0
removed plotting function
updated to v0.2.0
added HSAF reading example to examples directory, fixed a few typos
updated H_SAF read images example
fixed typos
Merge branch 'release/v0.2.0'

Conflicts:
	CHANGES.txt
	MANIFEST.in
	pytesmo/colormaps/__init__.py
	pytesmo/io/bufr/__init__.py
	setup.py
	tests/test_grid/test_resample.py
Merge branch 'master' of https://github.com/TUW-GEO/pytesmo