Catch exception when identity has already been registered to avoid crashing. Allow user to try to register it anyways, since it's always possible it will become available at some point in the future (i.e. if ID is abandoned or revoked).
Merge pull request #161 from HackFisher/master

fix 1 compile error on windows, coroutine was lost for WIN32 cmake
Merge branch 'master' of https://github.com/InvictusInnovations/keyhotee
Revert "fix 1 compile error on windows, coroutine was lost for WIN32 cmake"

This reverts commit 00ecb6d743c5e5895a0cdec9124d72566bf3369e.
Merge branch 'master' of https://github.com/InvictusInnovations/keyhotee
Fix link errors when boost version larger or equal than 1.54