```
www/tomcat[6|7|8]: Add options, Remove start_precmd from rcfile
- Add options [1]
Based on Apache Tomcat documentation guidance, the default web applications
have varying degrees of risk, these options will permit users to select
which of the web applications should be installed.
- Remove start_precmd from rcfile in Tomcat7 and Tomcat8 [2]
This is not being used, users can use ${name}_env to pass variables
PR: 218865 [1]
PR: 228418 [2]
Submitted by: Matt <fsbruva@yahoo.com> [1]
Reported by: Michael Osipov <1983-01-06@gmx.net> [2]
Differential Revision: https://reviews.freebsd.org/D16499
```