Initial directory structure for lcb 2.3
Add libcouchbase 2.3 documentation

Note this is still missing release notes
Some modifications per matt's comments
Sync Gateway: fix typo (CBLT-216)
miscellaneous bug fixes
miscellaneous bug fixes
add site map
Merge branch 'stage' of https://github.com/couchbaselabs/docs-ng into stage
Add releasenotes for libcouchbase 2.3
Merge pull request #110 from mnunberg/stage

Add libcouchbase 2.3 documentation
.NET SDK: fix conversion error in exponential value (NCBC-430)
.NET SDK: remove reference to RESTsharp.dll (NCBC-429)
C SDK: edits for v2.3 new content and release notes
nanoc.yaml: update C SDK menu link to version 2.3
index.html: update link to C SDK on home page to version 2.3