Release 0.9.9 - codename `AlmostThere`

Bump for 0.9.8 release

Fix another radareorg#642 thingie : listen disabled in sandbox

- Fix a bug in RSocket API

Use acr 0.9.6 to fix r2-bindings configure and dist with xz

Bump for the 0.9.4 release

Fix android build

Added tag 0.9 for changeset f0b46eee0246

Added tag 0.8.8 for changeset fffcb98cf521

Added tag 0.8.6 for changeset c8f3b9372d6f