npm + xtuple-server + node 0.10

FIXES
- [emlprofile_id_seq issue](https://github.com/tjwebb/xtuple/commit/6b54bfc71ac10a7a74bb59e83b230fd6f082ff3f)
- Sales order workspace test race condition
- increased Sales Order workspace test timeout
- occasional XT.log error in unit tests
- [encryptionKeyFile path resolution issue](https://github.com/tjwebb/xtuple/commit/22963dfde0a2e5efdc5ebfa8b044287dfa039dce#scripts-lib-build_database-js-P5)
- npm extension installation filtering conditions (resolves https://github.com/xtuple/xtuple/issues/1634)
- fragility of version generation (resolves https://github.com/xtuple/xtuple/issues/1636)

NEW
- support node 0.10 (resolves #1453)
- package xtuple as npm module
- build using xtuple-server
- upgraded pg module and others (resolves #1463, #1464)