if DHCP is enabled, than there is not static IP configuration
closes #244
Wrong bitmasks used in various hackery_*.m4 for timer prescaler
closes #225
new i2c submenu containing master and slave entries
make the I2C slave code compile
since it is only a demonstration it can not be used for general tasks
reformatted source code to comply with Ethersex's style guide
the missing menuconfig files for i2c
new ECMD to list the files stored in I2C EEPROM file system
reformat files to comply with Ethersex's style guide
multi-line output of ECMD "free" using ECMD_AGAIN to fit in smaller buffers
reformat file to comply with Ethersex's style guide
save four bytes of PROGMEM
implement vfs_unlink for I2C EEPROM
new ECMD "rm" to remove files
Merge pull request #245 from eku/i2c

new ECMDs for EEPROM file system
implement vfs_unlink() for Dataflash
refs #238
fix DST offset calculation
Merge pull request #246 from eku/clock

fix DST offset calculation
Missing punctuation added.
Fixed compile error when SD Card was active, but VFS was not.
Multi-line replies call ecmd_parse_command() several times.
Log ECMD via SYSLOG only once.
fix compile with option JABBER_EEPROM_SUPPORT
include jabber_ecmd.c in compile process if JABBER_EEPROM_SUPPORT is enabled