slock: update to 1.2.
New package: xsecurelock
Merge pull request #762 from srlang/xsecurelock

New package: xsecurelock
xsecurelock: fixed install issue
Merge pull request #766 from srlang/xsecurelock

xsecurelock: fixed install issue
New package: atool-0.39.0
atool-0.39.0: change distfiles
atool: remove 'cd '
atool: use build_style=gnu-configure; remove unnecessary bdeps.

Close #764
atools: switch to a working mirror.
libpng: update to 1.6.16.
xbps-src: set defaults to XBPS_C{,XX}FLAGS for the bootstrap target.
xbps-src: do not set -C in the bootstrap target, default confdir is ok.
uncrustify: update to 0.61.
tinc: update to 1.0.25.
ffmpeg: update to 2.5.2.
xbps{,-static}: fix races in the cache connection code of libfetch.
xbps: fix merged patch from master.
xbps: fix merged patch from master (v2).
nfs-utils: merge -server subpkg; should fix runit service.