`mail-sources': port is optional
display org-agenda buffer in "org" ibuffer group
open pdfs in mupdf
cleanups in ibuffer configuration
disabled renaming of Help buffers
using development version of gnus
binding for wide reply
removed some unnecessary configuration
do not specify extension of gnus init file
gnus: generally prefer text/plain over text/html
slightly tweaked gnus formatting variables
set up minimal `gnus-parameters'
`dolist' instead of `loop'
fixed function calls
declare variables during compilation
cleaned up passwords file, renamed some passwords
simpler erc setup
fix all compilation warnings