Mdanalysisdata

Added
- new `fetch_CG_fiber()` to get CG_fiber dataset (PR 24)

Fixes
- fixed fetch_adk_transitions_DIMS() failed to fetch (19)
- added six to install requirements (22)
- added setuptools to install requirements (23)

Fixes
- fixed description of 'AdK equilibrium' dataset
- fixed loading descriptions from zipped eggs (12)

Added
- new `fetch_nhaa_equilibrium()` to get the NhaA trajectory from
https://figshare.com/articles/Molecular_dynamics_trajectory_of_membrane_protein_NhaA/7185203/2
(see issue 7)
- new internal function `base._read_description()` to simplify reading of the
descr.rst files into datasets
- continuous integration/tests: MDAnalysisData should be compatible with Python
2.7 and Python 3.4+. It is currently tested on 2.7 and 3.6.

Changes
- Default location of the data_home is now stored as `base.DEFAULT_DATADIR`.

Fixes
- all dataset descriptions now contain *number of trajectories*
information

Changes
- changed the labels in the vesicles dataset to match documentation

Added
- documentation (4)
- automatic deployment of docs to
https://www.mdanalysis.org/MDAnalysisData/ via Travis-CI (#4)

Changed
- streamlined the typical `fetch_NAME()` function by using module
level variables
- added *size* information (unpacked data in MB) to the canonical descriptions

Added
- new `fetch_ifabp_water()` to get the IFABP+water data set from
https://figshare.com/articles/Molecular_dynamics_trajectory_of_I-FABP_for_testing_and_benchmarking_solvent_dynamics_analysis/7058030
(see issue 5)
- new `fetch_adk_transitions_DIMS()` and
`fetch_adk_transitions_FRODA()` functions to get the trajectory
ensembles from
https://figshare.com/articles/Simulated_trajectory_ensembles_for_the_closed-to-open_transition_of_adenylate_kinase_from_DIMS_MD_and_FRODA/7165306
(see issue 5)
- new `fetch_vesicle_lib()` function to get the structures from
https://figshare.com/articles/Large_System_Vesicle_Benchmark_Library/3406708
(see issue 5)

Fixed
- documentation in README fixed