Squashed implementation of native git support

Initial Commit with changes from #93

Added some tests which modify the abbrev length of the git.discribe to identify problems with the native git thingy

Added some tests which modify the abbrev length of the property git.commit.id.abbrev to identify problems with the native git thingy

Added some integration-tests for native git config tests

Added a new layer for git-Runtime (native VS jgit)

Improved the new Git-Dataprovider-Interface which now will handle the filling of the main git properties

changing the native git implementation to native git calls, so no xml or json parsing is necessary

Author: S L

README.md

@@ -112,6 +112,14 @@ It's really simple to setup this plugin; below is a sample pom that you may base
                     <!-- true is default here, it prints some more information during the build -->
                     <verbose>true</verbose>
 
+					<!-- @since 2.1.9 -->
+					<!-- 
+                        false is default here, if set to true it uses native GIT excutable for 
+						better performance (it must be installed in system and available in system PATH) 
+
+                    -->
+					<useNativeGit>false</useNativeGit>
+
                     <!--
                         If you'd like to tell the plugin where your .git directory is,
                         use this setting, otherwise we'll perform a search trying to
@@ -545,6 +553,7 @@ I'd like to give a big thanks to some of these folks, for their suggestions and
 * @mostr - for bugfixes and a framework to do integration testing,
 * @fredcooke - for consistent feedback and suggestions,
 * @MrOnion - for a small yet fast bugfix,
+* @TheSnoozer - for helping out others on issues as well as his contributions,
 * ... many others - thank you for your contributions,
 * ... you! - for using the plugin :-)
 

pom.xml

@@ -106,6 +106,14 @@
       <version>2.0</version>
     </dependency>
 
+    <!-- JSON -->
+    <dependency>
+        <groupId>net.sf.json-lib</groupId>
+        <artifactId>json-lib</artifactId>
+        <version>2.4</version>
+        <classifier>jdk15</classifier>
+    </dependency>
+
     <!-- Joda Time -->
     <dependency>
       <groupId>joda-time</groupId>
@@ -171,6 +179,13 @@
       <type>jar</type>
       <scope>test</scope>
     </dependency>
+
+	<dependency>
+	  <groupId>pl.pragmatists</groupId>
+	  <artifactId>JUnitParams</artifactId>
+	  <version>1.0.2</version>
+	  <scope>test</scope>
+	</dependency>
   </dependencies>
 
   <build>
@@ -182,6 +197,7 @@
         <includes>
           <include>**/*.properties</include>
           <include>**/*.xml</include>
+          <include>**/*.json</include>
         </includes>
       </resource>
     </resources>
@@ -199,20 +215,17 @@
           <!--</execution>-->
         <!--</executions>-->
         <!--<configuration>-->
-          <!--<prefix>git</prefix>-->
-
-          <!--<dateFormat>dd.MM.yyyy '@' HH:mm:ss z</dateFormat>-->
-
           <!--<verbose>true</verbose>-->
-
+          <!--<skip>false</skip>-->
+          <!--<prefix>git</prefix>-->
           <!--<dotGitDirectory>${project.basedir}/.git</dotGitDirectory>-->
-
           <!--<generateGitPropertiesFile>true</generateGitPropertiesFile>-->
-          <!--<generateGitPropertiesFilename>testing.properties</generateGitPropertiesFilename>-->
+          <!--<generateGitPropertiesFilename>target/testing.properties</generateGitPropertiesFilename>-->
 
-          <!--<excludeProperties>-->
-            <!--<excludeProperty>git.commit.*</excludeProperty>-->
-          <!--</excludeProperties>-->
+          <!--<dateFormat>dd.MM.yyyy '@' HH:mm:ss z</dateFormat>-->
+          <!--<useNativeGit>false</useNativeGit>-->
+          <!--<abbrevLength>7</abbrevLength>-->
+          <!--<format>properties</format>-->
 
           <!--<gitDescribe>-->
             <!--<skip>false</skip>-->
@@ -221,11 +234,16 @@
             <!--<dirty>-DEVEL</dirty>-->
             <!--<forceLongFormat>false</forceLongFormat>-->
           <!--</gitDescribe>-->
-		
-		  <!--<abbrevLength>7</abbrevLength>-->
+
+          <!--<excludeProperties>-->
+            <!--<excludeProperty>git.commit.*</excludeProperty>-->
+            <!--<excludeProperty>git.remote.origin.url</excludeProperty>-->
+          <!--</excludeProperties>-->
+
+          <!--<failOnNoGitDirectory>true</failOnNoGitDirectory>-->
+          <!--<failOnUnableToExtractRepoInfo>true</failOnUnableToExtractRepoInfo>-->
         <!--</configuration>-->
       <!--</plugin>-->
-
       <!-- Setting built-in java compiler properties -->
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>