As well as adding the necessary methods, a few other changes to the adb
remote:
* Use ".annextmp" extension for temp files, to avoid conflict with other
temp files.
* Stop using "echo $?" to get exit status of command inside adb.
There were two problems; first the "echo" just before it meant it was
always 0! And secondly, it seems kind of random on my phone whether it's
1 or 0, not dependant on whether the command seems to have succeeded.
git-annex init on the sdcard will now create a v7 adjusted unlocked
repo. While the assistant does still set up direct mode, that's not
because of /sdcard being a crippled filesystem.
