Trivial update of frsynabs doc.

And added reference to the Fast Griffin-Lim algorithm paper.
Trivial update of INSTALL-Octave
Rewrite of ltfatstart and ltfatstop

Functions now walk the whole directory tree searching for *dir*init.m
Updated dependencies in the DESCRIPTION file

relevant only for the Octave package.
Added PKG_DEL

which properly calls ltfatstop when unloading LTFAT as Octave-forge
package.
Test (test_all_ltfat and test_demos) are more safe now
Added Fast Griffin-Lim paper bibtex entry
Removed init script from /thidrparty

It is no longer needed since the subdirectories are traversed anyway.
Added checks for JRE in a headless mode

And disabling the blockproc framework GUI.