[PD] ~/pd or ~/.pd for user's externals directory

[IOhannes m zmoelnig]

Mike McGonagle wrote:
> Hans,
> 
> While I don't really have any feelings about this external directory, it 
> would be nice to have a different properties file from what Vanilla Pd 
> uses, this way we can have two different setups, and they won't 
> interfere with each other. 

i very much like this.
for the linux-packages, i therefore would also ask to:
- install into /usr/lib/pd-extended/ rather than /usr/lib/pd/
- startup as /usr/bin/pd-extended rather than /usr/bin/pd
- use a different settings file (e.g. ~/.pd/pd-extended.settings)
- remove the package-conflict between pure-data and pd-extended


for the user who prefers to start Pd via the menu, this will not change 
much.

for the user who prefers running Pd from the console (or scripts) this 
will eventually require a change, which could be alleviated by using 
"alternatives" (man update-alternatives)

fgnmasdr
IOhannes