TdefGui, PdefGui - fix gui naming
class library: gui: avoid error when no property is returned
help: add state example to Button help
help: add layout examples
class library: simplify and complete implementation of Size class
class library: simplify and complete implementation of Size class
plugins: EnvGen - update number of produced samples on audio-rate gates

fixes #1023

Signed-off-by: Tim Blechmann <tim@klingt.org>
Update INSTALL

The README files have .md extensions not .txt
Merge pull request #1025 from jwakely/patch-1

Update INSTALL
Merge pull request #1024 from timblechmann/topic/envgen_fix

plugins: EnvGen - update number of produced samples on audio-rate gates
help: update and fix specified categories
help: remove obsolete cocoa-specific helpfiles, improve some categorizations
class library: warn when trying to scope uninitialized proxy
class library: correct typo in hijazKar scale
class library: plotter: remove dysfunctional help button
sclang: add terminal standalone option

Add the option to tell sclang via command line option ( -a ) not to load any classes from the default locations in order to make it easier to make sclang based standalones