update build scripts

Signed-off-by: Denys Smirnov <[email protected]>

Merge pull request bblfsh#157 from juanjux/feature/semantic

Semantic objects

Merge pull request bblfsh#154 from juanjux/bip-5

Migration to the new DSL

Merge pull request bblfsh#153 from juanjux/fix/importfrom_pos

Fix position from ImportFrom nodes

Merge pull request bblfsh#151 from juanjux/feature/alpine37

Alpine 3.7 + Go 1.9

Merge pull request bblfsh#149 from juanjux/fix/comments

Comment improvements

Merge pull request bblfsh#144 from dennwc/update-1

use helper for main function

Merge pull request bblfsh#139 from juanjux/feature/astimprover_typed

[native driver] Maintainability improvements

Merge pull request bblfsh#137 from juanjux/fix/qualified_calls

Fixed Qualified role being applied to last item in composed function call.

Merge pull request bblfsh#136 from juanjux/fix/change_qualified

Fix/change qualified