Changes to applications poms:

* Suport maven-exec-plugin in the same way as the shade plugin, so
        $ mvn exec:java
    is all you need to do to run an app
* Update README
* Fix dependencies to nail Spring version

spring-bootstrap-applications/spring-bootstrap-application/pom.xml

@@ -19,6 +19,27 @@
 			<version>${project.version}</version>
 			<scope>runtime</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-core</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-beans</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-context</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-expression</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-aop</artifactId>
+			<optional>true</optional>
+		</dependency>
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-jdk14</artifactId>