Fix generation of code when using plugins block to apply the plugin.

Merge pull request #4 from Netflix/fix/apply-plugin

Fix generation of java code when using the plugins block to apply the…

Bug fix for generation of toString() for input types.

Do not enclose string values in double quotes when null.

Ensure java plugin is applied in the correct order.

4.0.10

Ensure java plugin is applied to avoid issues with using plugins{} sy…

Fix publishing to bintray

4.0.9

Fix bintray publishing.

Fix publishing to BinTray

v4.0.8

Update package name used for publishing to bintray.

Update README docs

v4.0.7

Update README to reflect the new plugin id and  group.

Rename plugin from dgs.codegen to com.netflix.dgs.codegen

v4.0.6

Update plugin id to com.netflix.dgs.codegen to add the company name.

Add tags to the plugin description

v4.0.5

Add tag to the plugin description.

Public release with fixed display name

4.0.4

Fix build error.

v4.0.3-rc.2

Rename plugin id to dgs.codegen.