faster to compile.

A small selection of packages was tested going from:

Executed in  696.30 secs   fish           external
   usr time   82.98 mins  395.00 micros   82.98 mins
   sys time    9.02 mins    0.00 micros    9.02 mins

to:

Executed in  592.20 secs   fish           external
   usr time   84.84 mins  361.00 micros   84.84 mins
   sys time    8.85 mins   57.00 micros    8.85 mins

Tested by running make -j 12 and wiping staging/build_dir/target_x

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Replaced git:// link with https:// which gets through firewalls easier.

Replaced archive with .xz. The one currently in the mirrors has the wrong
hash. .xz is also smaller than .gz.

Eliminated already default CMake option.

Eliminated Build/InstallDev with CMAKE_INSTALL.

Added PKG_BUILD_PARALLEL for faster compilation.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

fix Makefile chmod (644)
replace MD5SUM with HASH
add PKG_MIRROR_HASH when PKG_SOURCE_PROTO:=git

(PKG_SOURCE_PROTO:=svn tarballs are not reproducible for now)

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

Adds YAJL (Yet Another JSON Library), a C library for parsing JSON.
Includes patches for uClibc support.
Improved from version used internally at Who's On My WiFi since Feb 2014.
Adds myself as maintainer.

Signed-off-by: Charles Southerland <charlie@stuphlabs.com>