Correct env var names
Correct env var names

and add a note about priority

mzabaluev/glib,darren-clark/android_platform_external_bluetooth_glib,zsx/glib,bluez-android/glib,tamaskenez/glib,dicer/android_external_glib,krichter722/glib,dicer/android_external_glib,MathieuDuponchelle/glib,ieei/glib-old-android,endlessm/glib,johne53/MB3Glib,cention-sany/glib,iConsole/Console-OS_external_bluetooth_glib,bratsche/glib,MathieuDuponchelle/glib,lukasz-skalski/glib,antono/glib,endlessm/glib,cention-sany/glib,endlessm/glib,tamaskenez/glib,lukasz-skalski/glib,cention-sany/glib,pstglia/external-bluetooth-glib,johne53/MB3Glib,cention-sany/glib,johne53/MB3Glib,tamaskenez/glib,darren-clark/android_platform_external_bluetooth_glib,cosimoc/glib,pstglia/platform-external-bluetooth-glib,MathieuDuponchelle/glib,ieei/glib,tchakabam/glib,pstglia/platform-external-bluetooth-glib,justinkb/aosp-bluez.glib,Distrotech/glib,zsx/glib,gale320/glib,tchakabam/glib,pstglia/external-bluetooth-glib,lukasz-skalski/glib,krichter722/glib,gale320/glib,pstglia/platform-external-bluetooth-glib,dicer/android_external_glib,01org/android-bluez-glib,lukasz-skalski/glib,bluez-android/glib,01org/android-bluez-glib,iConsole/Console-OS_external_bluetooth_glib,ieei/glib,justinkb/aosp-bluez.glib,krichter722/glib,01org/android-bluez-glib,antono/glib,zsx/glib,dicer/android_external_glib,mzabaluev/glib,Distrotech/glib,djdeath/glib,ieei/glib,gale320/glib,ieei/glib-old-android,Distrotech/glib,Distrotech/glib,endlessm/glib,lukasz-skalski/glib,gale320/glib,tamaskenez/glib,tchakabam/glib,pstglia/platform-external-bluetooth-glib,iConsole/Console-OS_external_bluetooth_glib,djdeath/glib,krichter722/glib,darren-clark/android_platform_external_bluetooth_glib,justinkb/aosp-bluez.glib,ahmedammar/platform_external_gst_glib,MathieuDuponchelle/glib,ahmedammar/platform_external_gst_glib,cention-sany/glib,bratsche/glib,gale320/glib,pstglia/platform-external-bluetooth-glib,bluez-android/glib,antono/glib,tamaskenez/glib,tchakabam/glib,Distrotech/glib,bluez-android/glib,ieei/glib-old-android,ahmedammar/platform_external_gst_glib,ahmedammar/platform_external_gst_glib,tchakabam/glib,dicer/android_external_glib,justinkb/aosp-bluez.glib,pstglia/external-bluetooth-glib,djdeath/glib,01org/android-bluez-glib,ieei/glib,01org/android-bluez-glib,antono/glib,darren-clark/android_platform_external_bluetooth_glib,johne53/MB3Glib,cosimoc/glib,zsx/glib,darren-clark/android_platform_external_bluetooth_glib,iConsole/Console-OS_external_bluetooth_glib,MathieuDuponchelle/glib,justinkb/aosp-bluez.glib,ieei/glib-old-android,pstglia/external-bluetooth-glib,cosimoc/glib,djdeath/glib,mzabaluev/glib,johne53/MB3Glib,mzabaluev/glib,iConsole/Console-OS_external_bluetooth_glib,bratsche/glib,cosimoc/glib,pstglia/external-bluetooth-glib,johne53/MB3Glib,bluez-android/glib,mzabaluev/glib,cosimoc/glib,ieei/glib,krichter722/glib,endlessm/glib,bratsche/glib,djdeath/glib