Consistently use -SNAPSHOT version suffix in pom.xml files

This should make no difference to Maven, and all the versions that Tycho
cares about already used -SNAPSHOT, so this is more consistent and makes
everyone's lives easier.

org.eventb.texteditor.feature/pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.eventb.texteditor</groupId>
 		<artifactId>org.eventb.texteditor.parent</artifactId>
-		<version>3.4.1.qualifier</version>
+		<version>3.4.1-SNAPSHOT</version>
 		<relativePath>../org.eventb.texteditor.parent/pom.xml</relativePath>
 	</parent>
 

org.eventb.texteditor.parent/pom.xml

@@ -4,7 +4,7 @@
 
 	<groupId>org.eventb.texteditor</groupId>
 	<artifactId>org.eventb.texteditor.parent</artifactId>
-	<version>3.4.1.qualifier</version>
+	<version>3.4.1-SNAPSHOT</version>
 
 	<packaging>pom</packaging>
 

org.eventb.texteditor.parsers/pom.xml

@@ -6,7 +6,7 @@
 		<relativePath>../org.eventb.texteditor.parent/pom.xml</relativePath>
 		<groupId>org.eventb.texteditor</groupId>
 		<artifactId>org.eventb.texteditor.parent</artifactId>
-		<version>3.4.1.qualifier</version>
+		<version>3.4.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>org.eventb.texteditor.parsers</artifactId>

org.eventb.texteditor.repository/pom.xml

@@ -4,12 +4,12 @@
 	<parent>
 		<groupId>org.eventb.texteditor</groupId>
 		<artifactId>org.eventb.texteditor.parent</artifactId>
-		<version>3.4.1.qualifier</version>
+		<version>3.4.1-SNAPSHOT</version>
 		<relativePath>../org.eventb.texteditor.parent/pom.xml</relativePath>
 	</parent>
 
 	<groupId>org.eventb.texteditor</groupId>
 	<artifactId>org.eventb.texteditor.repository</artifactId>
-	<version>3.4.1.qualifier</version>
+	<version>3.4.1-SNAPSHOT</version>
 	<packaging>eclipse-repository</packaging>
 </project>

org.eventb.texteditor.ui/pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.eventb.texteditor</groupId>
 		<artifactId>org.eventb.texteditor.parent</artifactId>
-		<version>3.4.1.qualifier</version>
+		<version>3.4.1-SNAPSHOT</version>
 		<relativePath>../org.eventb.texteditor.parent/pom.xml</relativePath>
 	</parent>
 

org.eventb.texttools/pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.eventb.texteditor</groupId>
 		<artifactId>org.eventb.texteditor.parent</artifactId>
-		<version>3.4.1.qualifier</version>
+		<version>3.4.1-SNAPSHOT</version>
 		<relativePath>../org.eventb.texteditor.parent/pom.xml</relativePath>
 	</parent>