Merge branch 'stqism-master'
Check for CLOCK_MONOTONIC_RAW

This should fix irungentoo/ProjectTox-Core#879 (and it's better than irungentoo/ProjectTox-Core#883).
Merge branch 'Ansa89-CLOCK_MONOTONIC_RAW-fix2'
Reduced size of get_node packets.

Sendback data is now 8 bytes.

This does not break the network as the sendback data can be any
size between 1 and 150 bytes.
Fixed Tox sync.
Double-free on timeout fix
Merge branch 'master' of https://github.com/mannol1/ProjectTox-Core into mannol1-master
Rearranged mutex actions. Now allow calling av actions from callbacks
Apparently i forgot the most important thing...
Merge branch 'master' of https://github.com/mannol1/ProjectTox-Core into mannol1-master
Replaced tox_wait* functions with tox_do_run_interval().

Build system fixes.
Fixed potential memleaks
Merge branch 'master' of https://github.com/mannol1/ProjectTox-Core into mannol1-master
Renamed tox_do_run_interval to tox_do_interval.

tox_do_interval now returns a time in ms based on how much action
is going on in net_crypto.
Fixed byte order and removed log functions from misc_tools
Fixed the undefined reference to pow error
Merge branch 'nurupo-pow-fix'
We gon let it burn burn burn
Merge branch 'mannol1-master'
Fixed typo.

This typo doesn't actually cause any side effects unless you are like
stqism and have a C library that doesn't have mempcpy().