Restore .gitignore, remove files that were added

# Java class files

*.class

# IntelliJ and Gradle specific entries

.gradle

.idea/workspace.xml

.idea/tasks.xml

.idea/libraries/*.xml

dataSources.ids

datasources.xml

gradle.xml

build

# generated files

bin/

build/

gen/

target/

*.iml

# Local configuration files (sdk path, etc)

.idea/

.gradle/

local.properties

sample_client/local.properties

tests/local.properties

android-library

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<?xml version="1.0" encoding="UTF-8"?>

<project version="4">

  <component name="CompilerConfiguration">

    <option name="DEFAULT_COMPILER" value="Javac" />

    <resourceExtensions />

    <wildcardResourcePatterns>

      <entry name="!?*.java" />

      <entry name="!?*.form" />

      <entry name="!?*.class" />

      <entry name="!?*.groovy" />

      <entry name="!?*.scala" />

      <entry name="!?*.flex" />

      <entry name="!?*.kt" />

      <entry name="!?*.clj" />

    </wildcardResourcePatterns>

    <annotationProcessing>

      <profile default="true" name="Default" enabled="false">

        <processorPath useClasspath="true" />

      </profile>

    </annotationProcessing>

  </component>

</project>

<component name="CopyrightManager">

  <settings default="" />

</component>

 No newline at end of file

<?xml version="1.0" encoding="UTF-8"?>

<project version="4">

  <component name="Encoding" useUTFGuessing="true" native2AsciiForPropertiesFiles="false" />

</project>