diff --git a/.gitignore b/.gitignore
index d5c67a6..53ad6af 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,8 +24,16 @@
hs_err_pid*
replay_pid*
+# Idea files
+*.iml
+
# Nicko first pass build files
core/target
+v1_14_R1/target
+v1_15_R1/target
+v1_16_R1/target
+v1_16_R2/target
+v1_16_R3/target
v1_17_R1/target
v1_18_R1/target
v1_18_R2/target
diff --git a/v1_14_R1/v1_14_R1.iml b/v1_14_R1/v1_14_R1.iml
deleted file mode 100644
index fa42d64..0000000
--- a/v1_14_R1/v1_14_R1.iml
+++ /dev/null
@@ -1,69 +0,0 @@
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
\ No newline at end of file
diff --git a/v1_15_R1/v1_15_R1.iml b/v1_15_R1/v1_15_R1.iml
deleted file mode 100644
index facaaba..0000000
--- a/v1_15_R1/v1_15_R1.iml
+++ /dev/null
@@ -1,69 +0,0 @@
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
\ No newline at end of file
diff --git a/v1_16_R1/v1_16_R1.iml b/v1_16_R1/v1_16_R1.iml
deleted file mode 100644
index d400a46..0000000
--- a/v1_16_R1/v1_16_R1.iml
+++ /dev/null
@@ -1,69 +0,0 @@
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
\ No newline at end of file
diff --git a/v1_16_R2/v1_16_R2.iml b/v1_16_R2/v1_16_R2.iml
deleted file mode 100644
index 57cc7d8..0000000
--- a/v1_16_R2/v1_16_R2.iml
+++ /dev/null
@@ -1,69 +0,0 @@
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
\ No newline at end of file
diff --git a/v1_16_R3/v1_16_R3.iml b/v1_16_R3/v1_16_R3.iml
deleted file mode 100644
index 57cc7d8..0000000
--- a/v1_16_R3/v1_16_R3.iml
+++ /dev/null
@@ -1,69 +0,0 @@
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
\ No newline at end of file