cmake: export target with namespace (ros#60)

* cmake: export target with namespace

* bump patch version to 0.4.3

Update version to 0.4.2 (ros#59)

Use new version of gtest to fix windows warnings (ros#54)

* gtest: new version to fix warnings

* appveyor: add VS 2017, run it first

Remove deprecated macros (ros#48)

* remove deprecated macros and helper functions

* bump version to 0.4.0

Merge pull request ros#36 from scpeters/appveyor_github_test

MSVC disable -Wno-deprecated-declarations

Merge pull request ros#33 from scpeters/fopen_s

Fix windows compiler warning

Merge pull request ros#24 from scpeters/macro_namespace

Add duplicate macros with namespace prefix

setting version one higher than last one

fix ros#10

undo SOVERSION