RaspberryMatic 2.15.5.20151101 (beta2)

This is a very early beta release of RaspberryMatic with a basic SD card image to actually demonstrate that creating a dedicated RaspberryPi-based distribution based on OCCU is possible.

Changes:

• based on CCU2 2.15.5 version
• fix "Add LAN gateway" problem (http://homematic-forum.de/forum/viewtopic.php?f=56&t=26917&start=150#p241712)
• fix problem with manual ip configuration (http://homematic-forum.de/forum/viewtopic.php?f=56&t=26917&start=150#p241752)
• fix ssh key generation (ssh_host_ed25519_key)
• fix HM-MOD-UART time problem (crontab)
• increase read only (/) partition (from 256 MB to 1 GB)
• increase read/write (/usr/local) partition (from 256 MB to 2 GB); backup procedure, which based on ccu2 version, was not designed for so huge portions
• change filesystem type from ext2 to ext4
• add some configuration values to config.txt (e.g. enable i2c)
• add some configuration values to cmdline.txt
• add i2c tools
• add /usr/local/etc/rc.init(rc.postinit, rc.local) support
• add /usr/local/etc/profile.d/*.sh support
• mount dos partition at /boot