Include zproxy in README
Merge pull request #286 from claws/zproxy-readme-update

Include zproxy in README
zproxy api adjustments (zproxy_bind now spawns attached thread and starts proxy) + test improvements
fixing merge conflict in zproxy.c
Merge pull request #287 from Talksum/master

zproxy api adjustments + test improvements
Added UUID support class
Merge pull request #288 from hintjens/master

Added UUID support class
Rebuild man pages
Changed zbeacon constructor

* Moving away from style of creating contexts inside async objects
* Like zproxy and zauth, zbeacon takes context from caller
* Sorry for breaking the zbeacon API...
Minor code cleanups
Closing test sockets explicitly, to fix occasional valgrind complaints
Merge pull request #289 from hintjens/master

Broke zbeacon constructor to make it fit other async objects
Added argument assertion
zproxy refactor to match naming conventions of other agent style czmq classes
Merge pull request #290 from Talksum/master

zproxy refactor to match conventions of other agent style classes
Added index to czmq man page
Merge pull request #292 from hintjens/master

Added index to CZMQ man page
Should continue if process has no file handles left
Fixed response to file handle exhaustion

- libzmq no longer asserts when file handles are exhausted
- so all classes that create sockets have to be robust against this
- they return NULL on construction
Fixed zproxy to deal with socket exhausted errors

- also fixed zproxy_bind to return 0 on OK, -1 on errors