[Tomcat Wiki] Update of "HowTo/FasterStartUp" by markt

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The "HowTo/FasterStartUp" page has been changed by markt:
https://wiki.apache.org/tomcat/HowTo/FasterStartUp?action=diff&rev1=26&rev2=27

Comment:
Complete some TODOs

  
  There exists an attribute on `Context` element, `containerSciFilter`. It can be used to disable container-provided features that are plugged into Tomcat via SCI API: !WebSocket support (in Tomcat 7 and later), JSP support (in Tomcat 8 and later).
  
- The class names to filter can be detected by looking into `META-INF/services/javax.servlet.ServletContainerInitializer` files in Tomcat JARs. For !WebSocket support the name is `org.apache.tomcat.websocket.server.WsSci`, for JSP support the name is `org.apache.jasper.servlet.JasperInitializer`.
+ The class names to filter can be detected by looking into `META-INF/services/javax.servlet.ServletContainerInitializer` files in Tomcat JARs. For !WebSocket support the name is `org.apache.tomcat.websocket.server.WsSci`, for JSP support the name is `org.apache.jasper.servlet.JasperInitializer`. e.g.:
+ {{{
+ <Context containerSciFilter="WsSci" />
+ }}}
  
+ The impact of disabling WebSocket support will depend on how many JARs were being scanned for WebSocket annotations and whether any other SCIs trigger annotation scans. Generally, it is the first SCI scan that has the biggest performance impact. The impact of additional scans is minimal.
- ''TODO: Configuration example''
- 
- ''TODO: How much faster does it make it? In short: Delays due to annotation scanning caused by !WebSocket have been already mentioned in another paragraphs on this page. This is an alternative to removing websocket JARs from Tomcat installation.''
  
  References: [[https://bz.apache.org/bugzilla/show_bug.cgi?id=55855|Bug 55855]], [[http://tomcat.apache.org/tomcat-8.0-doc/config/context.html|Tomcat 8 Context documentation]]
  

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