Just to close this problem and possibly help someone else with similar questions in the future:
It seems that the Android SDK (which includes ADB) is not allowed for redistribution. Quote from Androids T & C : 3.3. Except as required by applicable third party licenses, you may not copy (except for backup purposes), modify, adapt, distribute, decompile, reverse engineer, disassemble or create derivative works of the SDK or any part of the SDK, except as required by applicable third party licenses , you cannot download any part of the SDK to a mobile phone or any other hardware device other than a personal computer, to combine any part of the SDK with other software iem or distribute any software or device comprising a part of the SDK ".
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