libest

Merge pull request #87 from cisco/correct_sskg_content-length.master

Correctly set Content-Length on SSKG responses. Issue presented in PR #85. Build the headers to obtain the counts instead of maintaining constants to represent their sizes.

Merge branch 'int_2_ext'

Integrate proposed changes and improvements from https://github.com/cisco/libest/pull/81 after integration with internal version.

Merge pull request #80 from cisco/int_2_ext