Prepare release 1.2.1

Change-Id: I9cd283be9f3b18c7c7fd022ad124074693b6fc77
diff --git a/.gitignore b/.gitignore
index d18ef4b..c4feb4c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,17 +8,13 @@
 pom.xml.next
 release.properties
 
+
 ### Java ###
 *.class
 
 # Mobile Tools for Java (J2ME)
 .mtj.tmp/
 
-# Package Files #
-*.jar
-*.war
-*.ear
-
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
 
@@ -33,10 +29,6 @@
 # Netbeans specific project files
 nbactions.xml
 
-# IntelliJ specific project files
-.idea
-*.imlnbactions.xml
-
 # generated files
 bin/
 gen/
@@ -63,6 +55,7 @@
 # the project can be imported from settings.gradle
 .idea
 *.iml
+nb-configuration.xml
 
 # Old-style IDEA project files
 *.ipr