GCS/Wizard don't hide while waiting for disconnect

Fixes #1332
GCS/Wizard biascalibration page, fix bug with wrong slot connection

Fixes #1333
GCS/Wizard biascalibration fix segfault if wizard rerun after calibration
Merge pull request #1334 from guilhermito/wiz_fix

Wizard bug fixes
Make: create PHONY for standalone

This is good practice for targets that do not create
particular files.
Merge pull request #1337 from peabody124/phony_standalone

Make: create PHONY for standalone
all pios_sys: add PIOS_SYS_GetInISR() method
pios_com: ensure proper usage of Semaphore_Give depending on context