update go to 1.13

Signed-off-by: bblfsh-release-bot <release-bot@bblf.sh>

support old style array types; fixes #136

Signed-off-by: Denys Smirnov <denis.smirnov.91@gmail.com>

update sdk to 3.2.4

Signed-off-by: bblfsh-release-bot <release-bot@bblf.sh>

update sdk and pin openjdk version

Signed-off-by: Denys Smirnov <denys@sourced.tech>

Merge pull request #119 from bzz/fix-104-method-args-modifers

Fix #104 method args modifers

switch to go modules

Signed-off-by: Denys Smirnov <denys@sourced.tech>

update sdk version and add unicode fixture

Signed-off-by: Denys Smirnov <denys@sourced.tech>

update sdk version

Signed-off-by: Denys Smirnov <denys@sourced.tech>

update sdk version

Signed-off-by: Denys Smirnov <denys@sourced.tech>

Merge pull request #108 from bzz/sdk-update

Bump SDK version to 2.14.x