Added initial DAL.getFileList function
Added DAL function to retrieve list of files in states dir [#58246470] #42
Added service endpoint to view available backups [#58246470] #42
Added DAL function and service endpoint to swap current and backup states

[#58246470] #42
Created initial web interface to restore states [#58246470] #42
Changed default datadir path, will create if missing

[#59259266]
Added alertify and upgraded moment.js
Merge branch 'create_datadir' into development

[#59259266]
Updated restore interface, DAL user input sanitization [#58246470] #42
Merge pull request #93 from adlnet/roll_back_feature

Roll back feature merge
Added data directory to gitignore
Minor edit world update
World list filter returns no results by default [#59434718] #72
Search prompt on world list page if no results are returned [#59434718] #72
Search boxes on results page have a more desirable behavior

[#59434718] #72
Merge pull request #94 from adlnet/world_list_search

World list search feature merge
Updated Github banner link
fixed several small bugs, clone object materials failing to tile, update view callbacks from renderer, audio creating too many liseners
Merge branch 'development' of https://github.com/adlnet/Sandbox into development
bump version number, fix typo