libestr: add 0.1.6
libestr: add 0.1.6

Signed-off-by: Jack Mitchell <a19d077ac0035b433598a0cbcf8abfe335b46bd9@cbnl.com>
Signed-off-by: Martin Jansa <516df3ff67e1fa5d153800b15fb204c0a1a389dc@gmail.com>

RealDigitalMedia/meta-openembedded,RealDigitalMedia/meta-openembedded,RealDigitalMedia/meta-openembedded,RealDigitalMedia/meta-openembedded,RealDigitalMedia/meta-openembedded