Fixes rbn42#53

The above 2 sections of code were not used. And after commenting them out, the issue was solved.

I guess this issue was caused by setting a parent element's width to its child element's width.

Fixes rbn42#51

Revert "rbn42#36 Maybe this modification does not solve this issue, b…

…ut it I think it is the way suggested by soundcard's doc."

This reverts commit c823cb8.
 Because this commit does not solve rbn42#36 and it causes rbn42#41.

Rename gldft.frag to gldft.fsh. Because .frag is reserved for effects.

Release v0.4.2

Releases v0.4.1

Load visual effects in ~/.config/panon/

Add a hint for oie1ch