Further improvements to the Windows installer

Further improvements to the Windows installer
1. Install into "**/Tomcat7.0_servicename" when service name differs from default,
but install into "**/Tomcat7.0" if the name is the default one.
This is to be in line with 7.0.16 and earlier versions, but
differs from 7.0.17 which used "**/Tomcat7.0/servicename".
2. Changed name of registry key for running of Tomcat Monitor
3. Do not forget to delete Tomcat Monitor running entry from HKCU in 32-bit part of registry

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1142923 13f79535-47bb-0310-9956-ffa450edef68