Merge pull request #8 from cboxdoerfer/master

waveform plugin: adjust make.patch
add id to infobar plugin info
added build number support
updated apbuild
extract version info from plugins, for naming zips
write plugin description files for later use by md builder
improved pluginfo parser; added build-md script
added valign=top to table cells
readme.md upd
updated code comments
readme upd
readme upd
Update README.md
Update README.md
fixed few issues before publishing
changed the output table formatting
add replaygain control plugin