New features

• #1591: Add project.el integration that will make Projectile the default provider for project lookup.
• Add new command projectile-find-references (bound to C-c C-p ? and C-c C-p s x).
• #1737: Add helpers for dir-local-variables for 3rd party use. Functions projectile-add-dir-local-variable and projectile-delete-dir-local-variable wrap their built-in counterparts. They always use .dir-locals.el from the root of the current Projectile project.
• Add a new defcustom (projectile-dirconfig-file) controlling the name of the file used as Projectile’s root marker and configuration file.
• #1813: Allow project-files to contain wildcards and allow multiple project-files per project type registration. Add a new project-type for .NET solutions.

Changes

• #1812: Add a projectile-root-marked function for finding roots marked by .projectile. Prioritize .projectile above other bottom-up root files.

Bug fixed

• #1796: Fix projectile-root-bottom-up doesn’t always find bottom-most file.
• #1799: Fix projectile-open-projects lists projects for which all buffers are closed.
• #1806: Fix projectile-project-type to return the correct project type even when we pass it the DIR arg. As a result of the fix, projectile-expand-root, projectile-detect-project-type, projectile-verify-files , projectile-verify-file projectile-verify-file-wildcard, projectile-cabal-project-p, projectile-dotnet-project-p, projectile-go-project-p and the newly factored out projectile-eldev-project-p now also takes an &optional DIR arg to specify the directory it is acting on.