Update to 1.1.0pre. Pin Arrow runtime version. Make arrow-cpp conda package not required at build time

[wesm]

No description provided.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[wesm]

see also conda-forge/arrow-cpp-feedstock#17

[wesm]

Blocked on https://issues.apache.org/jira/browse/PARQUET-959, opened patch apache/parquet-cpp#303

[wesm]

Good grief. I guess the executables will refuse to link if all the Boost libraries are not in your LD_LIBRARY_PATH. Not sure if this is a bug or not

[ 73%] Linking CXX executable ../release/reader-writer
/opt/rh/devtoolset-2/root/usr/libexec/gcc/x86_64-redhat-linux/4.8.2/ld: warning: libboost_system.so.1.63.0, needed by ../arrow_ep/src/arrow_ep-install/lib/libarrow.so, not found (try using -rpath or -rpath-link)
/opt/rh/devtoolset-2/root/usr/libexec/gcc/x86_64-redhat-linux/4.8.2/ld: warning: libboost_filesystem.so.1.63.0, needed by ../arrow_ep/src/arrow_ep-install/lib/libarrow.so, not found (try using -rpath or -rpath-link)
../arrow_ep/src/arrow_ep-install/lib/libarrow.so: undefined reference to `boost::filesystem::path::operator/=(boost::filesystem::path const&)'
../arrow_ep/src/arrow_ep-install/lib/libarrow.so: undefined reference to `boost::system::system_category()'
../arrow_ep/src/arrow_ep-install/lib/libarrow.so: undefined reference to `boost::system::generic_category()'
collect2: error: ld returned 1 exit status