env variable. README updates.

.gitignore

@@ -1,2 +1,4 @@
 target
 
+*.swp
+

Gemfile

@@ -1,3 +1,10 @@
 source 'https://rubygems.org'
 
-gem 'pg_migrate', :path=> '~/workspace/pg_migrate_ruby'
+# Look for $WORKSPACE, otherwise use "workspace" as dev path.
+workspace = ENV["WORKSPACE"] || "workspace"
+
+# Assumes you have already cloned pg_migrate_ruby in your workspace
+# $ cd [workspace]
+# $ git clone https://github.com/sethcall/pg_migrate_ruby
+
+gem 'pg_migrate', :path=> '~/' + workspace + '/pg_migrate_ruby'

Gemfile.lock

@@ -0,0 +1,22 @@
+PATH
+  remote: ~/dev/pg_migrate_ruby
+  specs:
+    pg_migrate (0.1.0)
+      logging (= 1.7.2)
+      pg (= 0.14.0)
+      thor (= 0.15.4)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    little-plugger (1.1.3)
+    logging (1.7.2)
+      little-plugger (>= 1.1.3)
+    pg (0.14.0)
+    thor (0.15.4)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  pg_migrate!

README

@@ -5,14 +5,16 @@ Schema migrations for the jam-db database.  Uses the [pg_migrate tool](https://g
 
 Overview
 --------
-jam-db defines the migrations that comprise the jam-db database.  It uses pg_migrate to package up the migrations iinto a gem or (TODO) jar. You can then use those packaged up versions of the schemas in downstream projects.
+am-db defines the migrations that comprise the jam-db database.  It uses pg_migrate to package up the migrations into a gem or (TODO) jar. You can then use those packaged up versions of the schemas in downstream projects.
 
 The main reason the 'pg_migrate' approach is taken is to make to possible to use the database like an interface, freed from any one project or language.
 
-Environmenti
+Environment
 -----------
 * [rvm](https://rvm.io/) with ruby 1.9.3 installed and activated.  rvm needs to be activated in your shell (the installation process does this)
 * bash . If on windows, use git bash or cygwin. Bash is used as the build script technology.  (could change very easily)
+* Definition of location for your developer workspace. Default is ~/workspace, but if you define an env variable, you can override.
+* pg_migrate_ruby - $ cd [workspace] && git clone https://github.com/sethcall/pg_migrate_ruby
 * NOT YET: $IVY defined as path to the [apache ivy jar](http://ant.apache.org/ivy/download.cgi). Download the latest ivy from here, extract somewhere, and create an IVY environment variable with a path to the ivy.jar. For example, in my bash.profile: `export IVY=/Users/seth/workspace/apache-ivy-2.3.0-rc1/ivy-2.3.0-rc1.jar`
 
 Building