[mythtv] Android clean-up

[Peter Bennett]

I would like to make some small improvements to the android scripts:

1. Change run parameters to have default log settings "-v 
general,playback". Current settings produce a lot of extra log output. 
Developers can always change them locally as needed for debugging.

2. gdb.sh copies files to so/. Change it to use the settings in make.inc 
to create separate directories for 64 bit and 32 bit. Currently it only 
copies libraries if they have changed, but if you switch between 32 and 
64 bit this will go wrong.

3. strip libraries when creating apk package. I believe the debug 
symbols are only needed in the linux copy of the libraries, the copy 
deployed in the apk does not need them for debugging purposes.

I want to try mythfrontend on an android tablet, 32 bit, to see whether 
it works there.

I have created a place on bintray.com for distributing packages, as I do 
with Raspberry pi. See this URL:

https://dl.bintray.com/bennettpeter/generic

Evidently it is possible to install a package on android from a URL once 
you have set it to allow packages from unknown sources. I am not sure 
whether that requires you to first install a browser or whether there is 
an easy way to install from a URL. Unlike a phone, NVidia Shield does 
not seem to come with a browser or a way to receive text messages or 
emails. Some sites recommend using ES File manager for this.

Peter