Added an API for getting a callback when a ping reply is received.
Correct the operator in the comment so that it matches the actual #if
Merge pull request #520 from oliverschmidt/master

Fixed some of the targets broken by changing the UIP_CONF_LLH_LEN default.
Merge pull request #521 from oliverschmidt/master

Add somewhat more support to use different mouse drivers.
Merge pull request #522 from oliverschmidt/master

Added mouse support for the Atari.
Stopped to load plugins depending on simulations if there is no simulation
Add comments to the #else and #endifs to make it clearer to what #ifdef they belong.
Merge pull request #505 from adamdunkels/push/fix-the-fix-that-fixes-the-fix

Fix the bug in the IPv6 bugfix
Fix buggy UART baudrate calculation in the RL78 UART driver.
Increase the default baudrate to 38400 bps for RL78.
Add cpu/rl78/dev/uart1.h because some examples rely on it.
Merge pull request #534 from hexluthor/rl78-fixes

UART-related fixes for Renesas RL78
Merge pull request #536 from oliverschmidt/master

Copied 'contiki_arg[c|v]' from 'native' to the other desktop targets.
collect: making some protocol parameters configurable by COLLECT_CONF_ style defines

TTL (which has a rather low default of 15), MAC level retransmissions,
overall number of retransmissions, and the header bits dedicated to these
were all fixed in the collect.h and collect.c, without a simple way to
override them.
Extracted these as COLLECT_CONF_ parameters, keeping defaults as they were
before.

Signed-off-by: Csaba Kiraly <kiraly@disi.unitn.it>
Merge pull request #537 from oliverschmidt/master

Added cmdline args support to wget example.
Merge pull request #539 from oliverschmidt/master

Added more flexibility to webbrowser -> wget forwarding.
rl78: Rename CORE to RL78_CORE to avoid a conflict with Contiki's CORE variable.
eval-adf7xxxmb4z: Corrections to the platform README, update URLs to point to the mainline Contiki.
rl78: Attempt to locate the IAR installation automatically and instruct the user how to specify IAR_PATH if it cannot be found.
Fix compilation error when DEBUG enabled in core/net/mac/framer-nullmac.c