few Makefile changes
put back package-version in docdir
fix issue #10 - provide empty icon for unknown status) ; handle also not_charging status
another try to fix issue #10 - try guessing status when unknown one is received
small change for licensing
change case when listing icon types
whitespaces and co.
rework notification and tooltip messages
rework process to get battery estimated time (fix bugs, ...)
send message to system logger before spawning critical battery level command
remove dependency to libudev. sysfs is accessed directly.
rework coding style, plenty of small fixes and improvements
fix few mistakes
fix whitespaces
lock in update_tray_icon is not needed. process is event based.
be consistent when using energy_xxx or charge_xxx
rework percentage & time computation functions
version number has been added
add version option in README
put config parameters in a structure