more small fixes from v2.1.1

Merge pull request #900 from clinwiki-org/staging

update additional bugs

small fixes for v2.1 release

small performance and feature fixes

v2.1 release for mailmerge

search page refactor, save search, logging search and study, functions in mailmerge

patch for Wikipedia url bug

had to release change to fix bug in wikipedia api graphql that causes some studies / interventions to error when receiving Wikipedia URL

v2 release for mailmerge

This is the release that involves major changes to mailmerge functionality and preformance improvements

v1.0.1

• Add ELASTIC_PASSWORD as environment variable in Docker Compose
• Setup documentation updates
• Markdown linting fixing
• kramdown gem update from dependabot
• Add Windows and macOS files to .gitignore
• Open about page in new tab
• Remove loader.io from load testing (does not seem like a good long term solution)
• Remove Vagrant instructions from README.md
• Add instructions to local setup for creating a user, assigning the admin role and creating the default site
• CW-10 - Fullstory integration