Feature enhancements and minor corrections

• adaptions for OSX: auto-detect the location of the bash binary
  (OSX ships with an old Bash, version 3.x, while Adebar requires 4+. So with this adaption, you can e.g. install a Bashv4 to /opt/bin, and prepend that location to your $PATH variable (export PATH=/opt/bin:$PATH) and Adebar will find it)
  Thanks to d5ve for this contribution!
• new feature: "special transfer dir" (see directory settings in the Wiki's Configuration page for details)
• now collecting disabled components together with disabled apps (if MK_*APPS is disabled). This generation of deadReceivers.sh is faster in the original place (as package data is already loaded there), so we prefer it over there.
• original generation of deadReceivers.sh was broken for some devices (which used different indention). Fixed using regex.
• depending on device's Android version, use pm hide (Android 5.0+) or pm disable (Android < 5.0) to disable apps. pm hide is said to not require root, while pm disable sometimes does.
• fix for adb pull progress bar (ADB v1.0.36 / r24 / Android 7 introduced a progress bar which is nice for interactive use but confused our screen logging)