plugins: EnvGen - initialize level of initial \hold segments

Fixes: #1027

Signed-off-by: Tim Blechmann <tim@klingt.org>
class library: BusPlug: return an array only if numChannels is not 1.
help: update changes helpfile to the previous commit
This fixes #1116.
update and improve helpfiles
class library: use closed function in proxy source conversion for efficiency
scsynth:SC_CoreAudio: fix warnings - issue #1117
scsynth:SC_CoreAudio: fix for issue #636
Merge pull request #1118 from gurk/scsynth_coreaudio_fixes

scsynth coreaudio fixes
ide: add show/hide line number feature
Merge pull request #1121 from vdonnefort/show-line-number-feature

ide: add show/hide line number feature
ide: add missing header for dumpOSCChanged function
Merge pull request #1123 from timblechmann/for_master

some supernova fixes
Merge pull request #1028 from timblechmann/topic/envgen_hold_fix

plugins: EnvGen - initialize level of initial \hold segments
merge and see if it fixes the issue completely
File.schelp: changed pathnames to fully qualified

through the use of .standardizePath
removed f.getline(1024).postln in last example
Merge pull request #1126 from miczac/master

File.schelp: changed pathnames to fully qualified
supernova: ensure that daz/ftz are set in all audio threads