[macports-base] branch travis-ci updated (ab6a53a -> 8588485)

[Rainer Müller]

Rainer Müller (raimue) pushed a change to branch travis-ci
in repository macports-base.

    from ab6a53a  Enable Travis CI deployment
     add 7b2cf6c  sip_copy_proc: Use copyfile(3) in sip-workaround
     add f8fd65b  Add macports-clang-4.0 to list of libc++ compilers
     add bcfac69  Remove clang-3.[789] from OS versions with SDKs that require functionality not in those compilers
     add 578f0b4  sandbox: Add file-write-setugid for macOS 10.13
     add f58ec32  ChangeLog: Update for backported changes
     add fdaadf7  Bump branch version to 2.4.2
     add 68708e1  ChangeLog: Release date for 2.4.2
     new 8588485  Merge tag 'v2.4.2' into travis-ci

The 1 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.


Summary of changes:
 ChangeLog                      | 13 +++++++++++++
 config/macports_version        |  2 +-
 configure                      | 20 ++++++++++----------
 src/pextlib1.0/sip_copy_proc.c | 26 +++++++++++++++++++++++++-
 src/port1.0/portconfigure.tcl  | 12 +++++++++++-
 src/port1.0/portsandbox.tcl    | 17 ++++++++++++-----
 6 files changed, 72 insertions(+), 18 deletions(-)