[KARAF-3128] Fix comments
[KARAF-3130]add admin:change-ssh-host command
(cherry picked from commit 119e9fecb20633ea98664ccda532bb9cb2f286a1)

Conflicts:
	admin/management/src/main/java/org/apache/karaf/admin/management/internal/AdminServiceMBeanImpl.java
	instance/command/src/main/resources/OSGI-INF/blueprint/instance-command.xml
	instance/core/src/main/java/org/apache/karaf/instance/core/Instance.java
	instance/core/src/main/java/org/apache/karaf/instance/core/InstancesMBean.java
	instance/core/src/main/java/org/apache/karaf/instance/core/internal/InstanceImpl.java
(cherry picked from commit 8a55f92a96f5fcc7d4270e7f1997e494911f410e)

Conflicts:
	instance/command/src/main/resources/OSGI-INF/blueprint/instance-command.xml
[KARAF-2936] Upgrade to Pax Logging 1.7.3
[KARAF-3129] Exclude ssh keys from rat plugin
[KARAF-3124] Add shell:env command
[KARAF-3124] Fix comment in the EnvAction
[KARAF-3123] Prevent bundle watcher to stop/start fragment bundles
[KARAF-3120] Upgrade to Aries JPA 1.0.2