REFACTOR: Boost version number and suppress deprecated compiler warnings for OpenSSL on macosx.
UPGRADE: paks

    - ejs to 2.4.0
        - Remove conditional compilation
    - ejs-version to 0.8.4
        - Fix version sorting
    - http
        - Fix file upload boundary checking
    - mpr
        - Fix static linking
    - osdep
        - dirs => directories.