coremanager: exit when core directory does not exist

Signed-off-by: Franck Jullien <franck.jullien@gmail.com>
utils: add env parameter to the Launcher

Signed-off-by: Franck Jullien <franck.jullien@gmail.com>
Add external script launching support

Signed-off-by: Franck Jullien <franck.jullien@gmail.com>
Signed-off-by: Olof Kindgren <olof@opencores.org>
Use Launcher with shell=true instead of launching bash directly
INSTALL: Add a note about $PYTHON environment variable

Signed-off-by: Franck Jullien <franck.jullien@gmail.com>
Fix github provider fetch method.

Several return statements were missing.
updated doc capi.txt