libfreerdp-core: export function to retrieve error info from static entry table
Merge branch 'master' of git://github.com/awakecoding/FreeRDP

# By Marc-André Moreau
# Via Marc-André Moreau
* 'master' of git://github.com/awakecoding/FreeRDP:
  libfreerdp-core: export function to retrieve error info from static entry table
MacFreeRDP cli fixes:
- added ErrorInfo handling.
- Showing alert message on main thread.
- Autorelease pool for background thread.