Security update for tomcat

This update for tomcat fixes the following issues:

Security issues fixed:

- CVE-2017-5664: A problem in handling error pages was fixed, to avoid potential file overwrites during error page handling. (bsc#1042910).
- CVE-2017-7674: A CORS Filter issue could lead to client and server side cache poisoning (bsc#1053352)
- CVE-2017-12617: A remote code execution possibility via JSP Upload was fixed (bsc#1059554)

Non security bugs fixed:

- Fix tomcat-digest classpath error (bsc#977410)
- Fix packaged /etc/alternatives symlinks for api libs that caused
rpm -V to report link mismatch (bsc#1019016)

This update was imported from the SUSE:SLE-12-SP2:Update update project.

Fixed bugs
bnc#1019016
tomcat-el-3_0-api: package verification fails
bnc#977410
Tomcat-apache : The command tomcat-digest doesn't work
bnc#1042910
VUL-0: CVE-2017-5664: tomcat,tomcat6: Security constrained bypass in error page mechanism
bnc#1053352
VUL-0: CVE-2017-7674: tomcat: The CORS Filter issue could lead to client and server side cache poisoning
bnc#1059554
VUL-0: CVE-2017-12615, CVE-2017-12617: tomcat: Remote Code Execution via JSP Upload
Selected Binaries
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