Merge pull request #1151 from hintjens/master

Documentation patches
Bugfix wrong CMakeLists.txt after rename of file
Merge pull request #1159 from kreuzberger/master

Bugfix wrong CMakeLists.txt after rename of file
Reset metadata for outbound messages
Merge pull request #1161 from hurtonm/master

Reset metadata for outbound messages
Add const qualifier to source parameters in zmq_z85_decode and zmq_z85_encode
Merge pull request #1162 from xaqq/encode_decode

Add const qualifier to source parameters for z85 encode/decode
Code cleanup
Merge pull request #1163 from hurtonm/master

Code cleanup
Merge pull request #1166 from hintjens/master

Problem: FD_SETSIZE 1024 is too restrictive under Windows
Fix test broken when we changed FD_SETSIZE.
Merge pull request #1168 from ricnewton/master

Fix test broken when we changed FD_SETSIZE.
Problem: issues with nodrop property

- not initialized before use
- name is nasty (boolean variables should not have negative names)

Solution: rename to 'lossy' and initialize to 'true'.
Added test cases to .gitignore