Why do I get two different Project Context for my Spring mvc web application?

Question

Following is my pom.xml

<project xmlns="Page on apache.org" xmlns:xsi="Page on w3.org"
xsi:schemaLocation="Welcome to Apache Maven/POM/4.0.0 Page on apache.org">
<modelVersion>4.0.0</modelVersion>
<groupId>com.MyStartUp.www</groupId>
<artifactId>MyStartUp</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>MyStartUp Maven Webapp</name>
<url>Welcome to Apache Maven</url>
<properties>
<spring.version>4.0.2.RELEASE</spring.version>

</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-mongodb</artifactId>
<version>1.6.0.RELEASE</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>org.apache.tiles</groupId>
<artifactId>tiles-api</artifactId>
<version>2.2.1</version>
</dependency>
<dependency>
<groupId>org.apache.tiles</groupId>
<artifactId>tiles-core</artifactId>
<version>2.2.1</version>
</dependency>
<dependency>
<groupId>org.apache.tiles</groupId>
<artifactId>tiles-jsp</artifactId>
<version>2.2.1</version>
</dependency>
<dependency>
<groupId>org.apache.tiles</groupId>
<artifactId>tiles-servlet</artifactId>
<version>2.2.1</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.1.2</version>
</dependency>
</dependencies>
<build>
<finalName>MyStartUp</finalName>

<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>

I use tomcat server v7.0 to deploy and I use maven to build.

Whenever I make a change I go to maven terminal and use "mvn clean install" and go to localhost:8080/manager and deploy the war by browsing the application in my desktop. After this I see "MyStartUp" in tomcat manager window in browser.

My project name in eclipse looks as "mystartup".

When I add the project in Eclipse IDE using "Add or remove" after right click the server, I see "mystartup" and I add it. Then if I refresh localhost:8080/manager/

I see two different project deployed. 1) MyStartUp (Url : localhost:8080/MyStartUp --> Works) 2) mystartup (Url : localhost:8080/mystartup --> Doesn't Work)

When I click the second one, I am not able to access the application. But if I use the first one, it works

Because of this, each time, I do "mvn clean install" in IDE and I manually undeploy "MyStartUp" and deploy new install of "MyStartUp". This takes away my time. I want to add my project to Server in IDE and restart it when I make a change and run the application. How to fix this issue?

PS:

Here is my web.xml

<web-app version="2.2" id="WebApp_ID">

    <!-- <display-name>Archetype Created Web Application</display-name> -->

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring/appContext.xml</param-value>
    </context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>

    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/spring/dispatcher-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>/mvc/*</url-pattern>
    </servlet-mapping>
    <welcome-file-list>
        <welcome-file>/WEB-INF/jsp/template.jsp</welcome-file>  
    </welcome-file-list>
</web-app>

This is how my git clone looks

git clone https://MyStartUp@bitbucket.org/MyStartUp/mystartup.git