Spring Boot 2.2+

Upgraded to the new API by spring data 2.2 (#21)

* Upgraded to spring boot 2.2.0
* ignore .idea folder for IntelliJ

Bugfixes

• Fix NPE problem when sort order is empty
• Compiled using Vaadin 14

Spring Boot 2 support for Vaadin 10

Compiled using Vaadin 10 beta 9 & Spring Data Commons 2.0.6

Spring Boot 2 support for Vaadin 8

Compiled using Vaadin 8.4 and Spring Data Commons 2.0

Spring Boot 2 support

• Spring Boot 2 support
• Builder for creating a data provider

Initial version

1.0.0

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