Issue#353 (crypto): Update checkstyle to work again and move files.

	They previously lived under org.jcryptool.releng which stands
	for release engineering - IMHO not the right directory as it has
	nothing to do with releases. I would opt for a hidden directory
	as with other project-but-not-code related stuff.

Author: tassadarius

.development-configs/checkstyle-suppressions.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+
+<!DOCTYPE suppressions PUBLIC
+    "-//Checkstyle//DTD SuppressionFilter Configuration 1.2//EN"
+    "https://checkstyle.org/dtds/suppressions_1_2.dtd">
+
+<suppressions>
+    <suppress checks=".*" files="Messages.java"/>
+</suppressions>
+

org.jcryptool.releng/checkstyle.xml renamed to .development-configs/checkstyle.xml

@@ -1,20 +1,18 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.3//EN" "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
+<?xml version="1.0"?>
+<!DOCTYPE module PUBLIC
+          "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
+          "https://checkstyle.org/dtds/configuration_1_3.dtd">
 
-<!--
-    This configuration file was written by the eclipse-cs plugin configuration editor
--->
 <!--
     Checkstyle-Configuration: JCrypTool Checkstyle
-    Description: none
+    Description: use this checkstyle configuration for JCryptool development
 -->
 <module name="Checker">
   <property name="severity" value="warning"/>
   <module name="TreeWalker">
     <property name="tabWidth" value="4"/>
     <module name="JavadocMethod">
       <property name="excludeScope" value="private"/>
-      <property name="suppressLoadErrors" value="true"/>
     </module>
     <module name="JavadocType"/>
     <module name="JavadocVariable">
@@ -37,9 +35,6 @@
     <module name="IllegalImport"/>
     <module name="RedundantImport"/>
     <module name="UnusedImports"/>
-    <module name="LineLength">
-      <property name="max" value="120"/>
-    </module>
     <module name="MethodLength">
       <property name="max" value="200"/>
     </module>
@@ -75,9 +70,6 @@
     <module name="InnerAssignment"/>
     <module name="MagicNumber"/>
     <module name="MissingSwitchDefault"/>
-    <module name="RedundantThrows">
-      <property name="suppressLoadErrors" value="true"/>
-    </module>
     <module name="SimplifyBooleanExpression"/>
     <module name="SimplifyBooleanReturn"/>
     <module name="DesignForExtension">
@@ -108,6 +100,9 @@
       <property name="ignoreNumbers" value="-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 100, 128, 256, 512, 768, 1024, 2048, 4096"/>
     </module>
   </module>
+  <module name="LineLength">
+    <property name="max" value="120"/>
+  </module>
   <module name="NewlineAtEndOfFile">
     <property name="severity" value="ignore"/>
     <metadata name="net.sf.eclipsecs.core.lastEnabledSeverity" value="inherit"/>
@@ -122,6 +117,6 @@
     <metadata name="net.sf.eclipsecs.core.lastEnabledSeverity" value="inherit"/>
   </module>
   <module name="SuppressionFilter">
-    <property name="file" value="checkstyle-suppressions.xml"/>
+    <property name="file" value="${config_loc}/checkstyle-suppressions.xml"/>
   </module>
 </module>