Merge pull request bblfsh#88 from juanjux/fix/sort_test

Change position iterator unittest to match the expected ordering of the fixed libuast

Merge pull request bblfsh#81 from juanjux/feature/position_iterator

Binding for position iterator + tests + update to grpcio 1.10.0

Merge pull request bblfsh#87 from juanjux/fix/manifest

Add missing file to MANIFEST

Merge pull request bblfsh#79 from juanjux/fix/grpcio_version

Fixed grpcio version to 1.9.1 because of problems with 1.10.0

Merge pull request bblfsh#77 from juanjux/feature/typed_xpathresults

Added libuast typed filter functions. Other fixes & factorizations.

Merge pull request bblfsh#75 from juanjux/fix/leak

Fix memory leaks (thanks @amlweems)

Merge pull request bblfsh#73 from juanjux/bump/version

Bump version

Merge pull request bblfsh#67 from juanjux/fix/version_bump

Version 2.8.0

Merge pull request bblfsh#65 from juanjux/feature/deny_nonUTF8

Check for non UTF8 contents + test. Factorize content loading.

Merge pull request bblfsh#59 from juanjux/upgrade_sdk

Upgrade to SDK 1.8.0 to get the Language field in Responses.