OPAL-2237: Show that something is loading while loading the table of categories
OPAL-2237: Cleanup of derivation wizard views
Removing unused alert panel
Uncomment
Merge pull request #444 from emorency/categories-pager

OPAL-2237: Derivation wizards views cleanup
OPAL-2249
Merge pull request #445 from kazoompa/bug-OPAL-2249

OPAL-2249 - trapped notification error in wizard step and disabled next button until the problem persisted
Add padding to url example
Fix Shiro Session to use EhCache
* OPAL-2281: Replace Shiro MemorySessionDAO as it fills memory
* OPAL-2280: Memory is filling up working with Views
Do not ensure profile on every session start if it was already done before
Increments maxElementsInMemory for default cache
Fix OPAL-2286: Add to ValueTable API the variable count and the value set count
Use G1 GC
Update shiro-extras
Set maxElementsInMemory to 5
Set maxElementsInMemory to 1
OPAL-2270 - implemented password change for users who are in opal-user-realm
OPAL-2270 - refined error handling
OPAL-2270 - removed enums and added exceptions instead
OPAL-2270 - removed password logic from resource to service