library sonames

[Jani Monoses]

>> http://www.gnu.org/software/libtool/manual.html#Updating-version-info
> 
> Well that article gives the explanation already: "Increment current
> whenever interface gets added, removed or changed". For the recent

AIUI added, removed, changed  but only in a release vs a previous one. 
Otherwise during a development cycle if many things change and you 
increment current all the time it gets too large.

Jani