Added examples for gstfs usage

and moved them to examples/ subdirectory

Changed `make dist` accordingly
prefixed sig transcode with gstfs_
added textfiles required by GNU buildsystem
added autotools configure.in and Makfile.am files
added autotools utility scripts
removed old Makefile
Changed email to my address
Lowered requirement versions a bit
Merge from http://repo.or.cz/w/gstfs-ng.git/ branch v0.2dev