CI: use latest released packages in travis test

No need to install from git.
Also use only the "diffpy" channel in conda-build.

Author: pavoljuhas

.travis.yml

@@ -63,8 +63,6 @@ before_install:
   - $NOMC || conda install --yes conda-build conda-verify jinja2 numpy
   - $NOMC || conda create --name=testenv --yes python=${MYPYTHON_VERSION} coverage
   - $NOMC || conda config --add channels diffpy
-  # FIXME - keep just the "diffpy" channel for public release.
-  - $NOMC || conda config --add channels diffpy/channel/dev
 
   - $NOAPT || test "${TRAVIS_OS_NAME}" = "linux" || exit $?
   - $NOAPT || PATH="$(echo "$PATH" | sed 's,:/opt/pyenv/[^:]*,,g')"
@@ -103,20 +101,11 @@ install:
   - $NOAPT || MYSUDO=sudo
   - $NOSYS || $MYPIP install $MYPIPFLAGS coverage
   - $NOSYS || $MYPIP install $MYPIPFLAGS periodictable
-
-  # TODO - combine after fixup release of PyCifRW following 4.3.
-  - $NOAPT || $MYPIP install $MYPIPFLAGS "pycifrw==4.2.1"
-  - $NOBREW || $MYPIP install $MYPIPFLAGS pycifrw
-
-  - $NOAPT || $MYPIP install $MYPIPFLAGS diffpy.structure
-  # install diffpy.structure from the python3 development branch.
-  # TODO - replace with PyPI version later.
-  - $NOBREW || $MYPIP install $MYPIPFLAGS https://github.com/diffpy/diffpy.structure/archive/python3.tar.gz
+  - $NOSYS || $MYPIP install $MYPIPFLAGS pycifrw
+  - $NOSYS || $MYPIP install $MYPIPFLAGS diffpy.structure
 
   - $NOSYS || $MYSUDO scons -C ~/pkgs/libobjcryst install
-  # TODO - restore PyPI version after fixup release of pyobjcryst > 2.0.2
-  - $NOSYS || $MYPIP install $MYPIPFLAGS https://github.com/diffpy/pyobjcryst/archive/master.tar.gz
-  # - $NOSYS || $MYPIP install $MYPIPFLAGS pyobjcryst
+  - $NOSYS || $MYPIP install $MYPIPFLAGS pyobjcryst
   - $NOSYS || $MYSUDO scons -C ~/pkgs/libdiffpy install
   - $NOSYS || $MYPIP install $MYPIPFLAGS "${MYTARBUNDLE}"