Update prototype directory and clean out old files
Add modeling page to prototypes
Continue styling/building simulation modeling prototypes
More modeling edits, styling and structure
Add masks, style layers and panel groups
Finish styling priority layers, add map options
Fix merge error
update readme intro text
remove extra newline
incorporate @steventlamb's comment
Merge pull request #1529 from andrewbt/topic/readme-update

update readme intro text
Merge pull request #1527 from mtedeschi/topic/sim-modeling-prototypes

Sim/modeling prototypes
Fix incorrect usage of 'is'
Merge pull request #1525 from steventlamb/topic/fix_is_usages

Remove incorrect usage of 'is'
Make OTM1UserRelic inherit from abstract
Miscellaneous Improvements

Add better error message
Rename inappropriately named function
Rename vars with 'hash' -> 'dict'
Move helper functions to util module
Miscellaneous Improvements

- Rename 'dicts_to_saved_objects' -> 'save_objects'
- Rename dependency_ids -> relic_ids
  * They do more than process dependencies now)
- Give special meaning to pk=-1
- Always make (sure exists) a relic
- Order migrations by dependency
- Remove unnecessary try block
- Make relic_ids value assignment more explicit
  * This cryptic code was caused by trying to satisfy PEP8 in the wrong
    way. Making local variables for mutable objects is suboptimal.
- Add better error message for threadedcomment
Refactor search bar templates
Add library `bootstrap-slider`