Fix for segfault when key object is NULL or key value is NULL.
Fix for minor memory leaks.
Change v8 integer to v8 number datatype to handle 64-bit integers.
Ported C client as_status to node.js API.
Fix for memory leaks around as_bytes.
Merge branch 'master' into retarget_fixes

Conflicts:
	src/main/util/conversions.cc
Merge pull request #6 from citrusleaf/retarget_fixes

fix for segfault when key object is null
Ported as_policy related changes in C client to node.js
Merge branch 'port_c_changes'

Conflicts:
	src/main/util/conversions.cc
Updated the version in package.json
Needed to bump the version to 1.0.21