Moved hardcoded buffer sizes to #defines
Merge pull request #62 from cesanta/NS_READ_BUFFER_SIZE

Moved hardcoded buffer sizes to #defines
Removed codeship badge from readme: it is enough to have only one build status badge.
Merge pull request #64 from cesanta/badges

Removed codeship badge from readme: it is enough to have only one build ...
Consistent use of NS_MALLOC and friends.