rewrite shell scripts to Python

fixes #1783

Author: Vladimir Kotal

distribution/assembly.xml

@@ -42,18 +42,8 @@
         <fileSet>
           <directory>${project.basedir}/../tools</directory>
           <outputDirectory>bin</outputDirectory>
-          <includes>
-            <include>OpenGrok</include>
-            <include>ConfigMerge</include>
-            <include>Groups</include>
-          </includes>
-        </fileSet>
-        <fileSet>
-          <directory>${project.basedir}/../tools/sync</directory>
-          <outputDirectory>bin</outputDirectory>
           <includes>
             <include>*.py</include>
-            <include>reindex-project.ksh</include>
           </includes>
         </fileSet>
         <fileSet>

opengrok-indexer/pom.xml

@@ -467,7 +467,7 @@ Portions Copyright (c) 2017-2018, Chris Fraire <[email protected]>.
                   <arguments>
 		    <argument>-v</argument>
 		    <argument>--exclude=filelock.py,test_command.py,test_commands.py</argument>
-                    <argument>${project.basedir}/../tools/sync</argument>
+                    <argument>${project.basedir}/../tools</argument>
                   </arguments>
                 </configuration>
            </plugin>