Merge pull request #29 from sonlamho/bug_fixes

Merge branch 'master' of github.com:sonlamho/Char2Vec into bug_fixes

bug fix TypeError: Can't instantiate abstract class DatasetV1 with abstract methods _as_variant_tensor, _inputs

loosen the requirement of tensorboard

Merge pull request #7 from sonlamho/dependabot/pip/notebook-6.1.5

Merge pull request #8 from sonlamho/dependabot/pip/bleach-3.3.0

Merge pull request #9 from sonlamho/dependabot/pip/jinja2-2.11.3

Merge pull request #10 from sonlamho/dependabot/pip/pygments-2.7.4

apply Black formatter

Bump pygments from 2.4.2 to 2.7.4

Bump jinja2 from 2.10.1 to 2.11.3

Bump bleach from 3.1.4 to 3.3.0

Bump notebook from 6.0.0 to 6.1.5

Merge pull request #6 from sonlamho/dependabot/pip/tensorflow-gpu-1.15.4

Bump tensorflow-gpu from 1.15.2 to 1.15.4