Merge pull request #570 from diizy/stable-1.0

Fix crash on close patch rebased for stable
corrects the drag'n'drop behavior in the song editor.
Merge pull request #574 from BaraMGB/songeditor

corrects the drag'n'drop behavior in the song editor.
Fix broken command line rendering. Should always check that editor windows exist before using them.
Merge pull request #582 from softrabbit/stable-1.0

Fix broken command line rendering.
Portuguese translation by Esteban Viveros
Merge pull request #593 from tresf/stable-1.0

Portuguese translation by Esteban Viveros
Delete pt_br.qm
Brazilian Portuguese release translation file (QM)

The TS file is the "source", the QM file is the "binary".
Update #2 by Esteban Viveros
Delete pt_br.qm
Updated Portugese by Esteban Viveros

Second translation attempt.
Renamed to fix country designation bug
Merge pull request #598 from tresf/stable-1.0

Additional Portuguese locale data
new translation ru
Update ru.ts
new .qm if needed
more tweaks
+.qm +1tw.
Effect: change minimum gate to FLT_MIN

This helps reverbs (for example) to not get cut too soon (#424)

(cherry picked from commit f8773b8978f72b24fd15f5486dc85d81ced1d5b5)