Added CI environment and changed to GRADLE as build tool#1

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expeditioneer wants to merge 29 commits intoFreeEMS:masterfrom

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Commits on Jun 11, 2018

fixed apple build dependency
Dennis Lamm
committed
upgraded commons-lang3 dependency to 3.7
Dennis Lamm
committed
removed bad tests
Dennis Lamm
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minor java language migration
Dennis Lamm
committed

Commits on Jun 12, 2018

converted FileExtension to ENUM
Dennis Lamm
committed

Commits on Jun 13, 2018

added ci build
Dennis Lamm
committed
README.md added build-status
Dennis Lamm
committed
README.md updated requirements to Java 8
Dennis Lamm
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added LICENSE.md
Dennis Lamm
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added LICENSE
expeditioneer
authored
removed license.md
Dennis Lamm
committed
migrated from 'java.awt.Color' to 'javafx.scene.paint.Color'
Dennis Lamm
committed

Commits on Jun 19, 2018

reverted InitialLineColoring from enum to class
Dennis Lamm
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removed usage of class from package 'com.sun.*'
Dennis Lamm
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added log4j2
Dennis Lamm
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Commits on Jun 27, 2018

converted to gradle
Dennis Lamm
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converted log4j xml to properties
Dennis Lamm
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added execute bit to gradlew
Dennis Lamm
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added missing gradle-wrapper.jar
Dennis Lamm
committed

Commits on Jul 3, 2018

removed trailing whitespace
expeditioneer
committed