Bug#798516: gyp: Upgrade to new upstream version (to support --no-parallel)

The following packages in unstable are failing to rebuild due to this bug: node-leveldown node-sqlite3 node-zipfile node-expat node-mapnik node-srs node-groove node-postgres node-stringprep node-iconv node-ws They all fail with the error: gyp_main.py: error: no such option: --no-parallel

Bug#798516: gyp: Upgrade to new upstream version (to support --no-parallel)

Package: gyp Version: 0.1~svn1729-3 Severity: normal Dear Maintainer, The current version of gyp, 0.1~svn1729-3, does not support the '--no-parallel' option as this was introduced in revision 1773[1] The for example prevents the pty.js node module from building, used in the black-screen