Remove redundant jsonlite default overrides.
Add NEWS item.
More POST tweaking
Tweak alignment
Bump version
Corrected link to HTTP cats
Merge pull request #141 from dmenne/master

Corrected link to HTTP cats
"Content-type" -> "Content-Type"

RFC 7231 says "Content-Type".
Merge pull request #142 from hmalmedal/patch-1

"Content-type" -> "Content-Type"
Standardize Content-Type capitalization

While apparently the header fields are supposed to be case insensitive,
 #142 shows at least some systems do not follow the spec properly.  So
we might as well standardize all uses of `Content-Type` in the same
way.
Add note to news about Content-Type
Fix broken merge

There was an extra block I missed when I was doing the merge
Merge pull request #139 from jeroenooms/jsonlite_fix

Remove redundant jsonlite default overrides.
Merge pull request #146 from jimhester/Content-Type

Standardize Content-Type capitalization
Use the mime package. Closes #148
No longer import from tools
Improve content-type handling with bodies.
Closes #140
Implement safe_callback().
Closes #144
Added function as_header to oauth1.0_token

Same default as before, but is param as_header = FALSE is added then it
adds as parameter to url.
Added demo for withings

A small demo on how to use as_header to access withings API.