chore: release 7.5.0 (INRIA#3057)

Author: monperrus

doc/doc_homepage.md

@@ -32,6 +32,8 @@ To report a bug or ask a question, open an issue on [Github](https://github.com/
 Star Spoon on Github: [https://github.com/INRIA/spoon](https://github.com/INRIA/spoon). :-)
 
 <!-- .* Marker comment. -->
+- July 2019: Spoon 7.5.0 is released [(changelog)](https://github.com/INRIA/spoon/pull/3057)
+- May 2019: Spoon 7.4.0 is released [(changelog)](https://github.com/INRIA/spoon/releases/tag/spoon-core-7.4.0)
 - Februray 10, 2019: Spoon 7.3.0 is released [(changelog)](https://github.com/INRIA/spoon/releases/tag/spoon-core-7.3.0) 
 - December 4, 2018: Spoon 7.2.0 is released [(changelog)](https://github.com/INRIA/spoon/releases/tag/spoon-core-7.2.0) 
 - October 10, 2018: Spoon 7.1.0 is released [(changelog)](https://github.com/INRIA/spoon/releases/tag/spoon-core-7.1.0) 

pom.xml

@@ -28,7 +28,7 @@
 
   <artifactId>spoon-core</artifactId>
   <packaging>jar</packaging>
-  <version>7.5.0-SNAPSHOT</version>
+  <version>7.6.0-SNAPSHOT</version>
   <name>Spoon Core</name>
   <description>Spoon is a tool for meta-programming, analysis and transformation of Java programs.</description>
   <url>http://spoon.gforge.inria.fr/</url>