Pyhdf

* Add ManyLinux Wheel Builds (49)
* Add numpy as a install dependency

* Add ManyLinux Wheel Builds (49)

* Add ManyLinux Wheel Builds (49)

* Fix `pip install` failure due to missing build dependency (see 37)

This release fixes some Windows build issues and updates documentation.

* Remove "Quick install for Windows Users" (27)
* We no longer search for HDF4 library in `HDF4` environment variable or the `--hdf4` flag
* Fix and test Windows build in AppVeyor (25)
* Windows DDL names are updated to match official HDF4 release
* Fix Windows temporary file issue when running test
* Fix broken URLs to HDF4 site
* Update installation instruction to recommend conda

The only difference from v0.9.2 is that the project name has changed from [python-hdf4](https://pypi.org/project/python-hdf4/) to [pyhdf](https://pypi.org/project/pyhdf/). We had to use the new name python-hdf4 when we originally forked pyhdf. Previous pyhdf maintainer has kindly given us [access](https://github.com/pypa/warehouse/issues/5157) to pyhdf in PyPI. Please install `pyhdf` from PyPI instead of `python-hdf4` from now on.