Merge tag 'v1.2.0'

1.2.0

 * Strongloop fork of node-syslog (Sam Roberts)

 * updated README with link and typo fix (Matt Simerson)

 * Update README.md (Nazar Kulyk)

 * Create LICENSE.txt (Nazar Kulyk)

 * Mark package as !win32 (Ryan Graham)

 * fixup! add and use Return() overload for int (Sam Roberts)

 * Support v0.10 through v0.11.13 (Sam Roberts)

 * Remove unused persistent callback to log() (Sam Roberts)

 * Removed unused ObjectWrapper base from Syslog (Sam Roberts)

 * Remove unused function export from binding (Sam Roberts)

 * package: add test.js as npm test script (Sam Roberts)

 * Add option flag for openlog : LOG_PERROR (Socolin)
Upgrade compat.h and compat-inl.h.

Upgrade the v0.10/v0.11/v0.12 compatibility shim to the latest version
from strongloop/strong-agent.  Motivation: it has utility methods for
raising exceptions.
Remove homegrown ThrowException shim.

Replace the ThrowException() helper with the ThrowError() method from
compat.h.

Fixes #2.
v1.2.1
Merge branch 'release/1.2.1' into production