core: always set sender_pid in msg_send_int
6lowpan: free fragment buffer in error case
6lowpan: fix buffer overrun in decompression
IPv6: allow complete in ipv6_addr_init_prefix

If the specified prefix is a full IPv6 address, no bits remain.
Fixes a possible buffer overrun.
net_if: fix buffer overruns
6lowpan: do not overrun in context_remove
licenses: fix miss-spelled & missing boiler plates
Merge pull request #1974 from OlegHahm/cleanup_licenses

licenses: fix miss-spelled & missing boiler plates
Allow the application's makefile to specify a custom linker script, for example:
LINKERSCRIPT = custom-linkerscript.ld
net: fix buffer overrun in socket initialization
Merge pull request #1982 from locicontrols/custom-linkerscript

Allow the application's makefile to specify a custom linker script
Merge pull request #1980 from OlegHahm/coverity_fixes

net: fixes some finding from coverity
Merge pull request #1978 from OlegHahm/msg_send_int_set_pid

core: always set sender_pid in msg_send_int
exchanged BOARD_BLACKLIST with FEATURES_REQUIRED in the example Makefile
added cpp as feature for board native
Merge pull request #1988 from BytesGalore/riot_and_cpp_blacklist_to_required_feature

examples/riot_and_cpp: exchanged BOARD_BLACKLIST with FEATURES_REQUIRED
cpu/sam3x8e: added interrupt mode to uart driver
board/arduino-due: added missing UART defines

- added port defines to periph_conf.h
- added feature to Makefile.features
board/udoo: added missing UART defines

- added defines to periph_conf.h
- added UART feature to Makefile.features
cpu/sam3x8e: made UART0 work by editing syscalls