Analysis templates polish

Sample analysis template - should have permission check done on visibility of sample (not public!)

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* Change name (save as) to be able to create a new copy (change triggers a warning message below)
* field/class at top - have widget there set to current value
* Be able to go to snapshots - but ideally not be able to change them (relies on analysis settings/read only issue)
* Ability to delete versions, and set whatever one you want as active.
* Be able to set / change the template version properties
* Clone analysis template
* Generic input node - can be sample/cohort/trio etc?
* Take loading screen from trio_wizard and overlay while loading analysis
* Validate analysis template name pattern

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* In create_analysis_from_template ```if not template_run.is_populated()``` - then redirect to a page where you can fill in remaining fields. Take them from node editor forms? Then once you've set all variables, fill them in and execute the analysis template

custom_text_gene_list needs to be serialized into a gene list - so we can create on other system

* Make note of how it’s not saved yet.
* View all the analyses that were made from this template (in a grid). Per version