Code refactoring

[Angel-Karasu]

Batteries

• Use find command to determine the batteries (makes it compatible with a larger range of machines)

Config

• Add $XDG_CONFIG_HOME/auto-cpufreq.conf detection
• Listen the file, not the directory (listen the directory can cause security problem)

Init system

• Add Antix, Devuan for runnit
• Add init system command

Installer:

• Add/remove automatically conf file in /etc/auto-cpufreq.conf
• Add -i and -r options

Others

• Add global variables
• Add output with color
• Auto run in root
• Change the method to detect the distro (using cat, it bypasses the symbolic link problem)
• Clean the code
• Remove --log option