Documentation suggestions

[anjohnson]

Suggestion: Rename gateway.notes to make it more visible and clear that it contains the release notes. It would probably work as a .md file too.

In the testTop/README, move the Python prerequisites higher up in the file to make them more visible too. This document could also mention that the version of Base used should be built with SHARED_LIBRARIES=YES since the pyepics module has to be able to find the libca.so (or the user could set the pyepics variable whose name escapes me to point to the libca.so in a different Base).

My earlier reported issue with the nosetests --with-tap command is moot, I have tap.py installed in my personal PYTHONPATH but was running these tests from a different account.

[ralphlange]

Good points.
#9 outlines what more flexible tests could do.