Fix #76 - more robust projectile find-file-hook
Adds known-projects system

Known projects makes it easy to return to projects that you have
previously done work on. Projects are saved whenever the system
already does caching. The main user-facing component is the
`projectile-switch-project` command, bound to 's' on the projectile
mode map, which makes it easy to switch to the new project.
Merge pull request #69 from joelmccracken/add-start-and-stop-commands

Project Bookmarks, and Project Starting and Stopping
Update the keybindings table a bit
Fix a typo of a variable name in README

It should be projectile-require-project-root rather than
projectile-require-project-file.
Merge pull request #82 from aethanyc/fix-readme-typo

Fix a typo of a variable name in README
Fix #74 - kill all buffers related to a project

Previously only buffers backed by files were considered.
Now projectile will consider all buffers whose `default-directory`
is under the current project.
Support projects only for subdirs of the project root.

For large codebases, path exclusion is unworkable (too many paths to
exclude). It's better to only include the directories you want to
include.

This change accomplishes that, by changing the .projectile file so
that entries prefixed with + are subdirectory includes, - are
subdirectory and file pattern excludes, and no prefix are also
subdirectory and file pattern excludes, to preserve backwards
compatibility.
Merge pull request #88 from ahyatt/subdir-restrict

Support projects only for subdirs of the project root.
Fix git command
Fix #87 - update deps in projectile-pkg.el
Remove obsolete file
A bunch of smallish style fixes
Show file paths by default
Remove spurious empty strings from files list
Fix tests
Run `lein {compile|test}` in Clojure/Leiningen projects
Merge pull request #93 from djui/patch-1

Run `lein {compile|test}` in Clojure/Leiningen projects
Fix broken grep in project
Drop project files hashifying

Hashifying had serious performance implications and added next
to no value. Now Projectile relies on relative project file names and
performs much better.