fixes #901 shorter option get/set functions for all types

- Renamed internal nng_*_getx/setx methods with "nni" prefix
- Moved stream get/set option definition macros to options.h and added "NNI_" prefix
- "_PTR" variant of get/set option definition macros is for when first arg is passed as pointer (`nng_stream *s` vs `nng_pipe s`)
- New get/set option functions for `nng_socket` are `nng_socket_get_X` eschewing the previous `nng_getopt` pattern
- Macro-fy legacy getopt/setopt and implement in terms of "new" API
- nng_setopt* use "new" shorter API.  Add missing uint64 set functions.
- Shorter get/set option functions get own man page and old getopt/setopt link to them
- Built with -DNNG_ENABLE_DOC=ON and part of central libnng index
- Update copyright

1 files changed, 4 insertions, 1 deletions

diff --git a/docs/man/nng_ctx_setopt.3.adoc b/docs/man/nng_ctx_setopt.3.adoc
index 45f178f8..478410b5 100644
--- a/docs/man/nng_ctx_setopt.3.adoc
+++ b/docs/man/nng_ctx_setopt.3.adoc
@@ -1,6 +1,6 @@
 = nng_ctx_setopt(3)
 //
-// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2019 Staysail Systems, Inc. <info@staysail.tech>
 // Copyright 2018 Capitar IT Group BV <info@capitar.com>
 //
 // This document is supplied under the terms of the MIT License, a
@@ -35,6 +35,9 @@ int nng_ctx_setopt_uint64(nng_ctx ctx, const char *opt, uint64_t u64);
 ----
 
 == DESCRIPTION
+
+NOTE: These functions are deprecated.  Please see xref:nng_ctx_set.3.adoc[nng_ctx_set].
+
 (((options, context)))
 The `nng_ctx_setopt()` functions are used to configure options for
 the context _ctx_.