Fix install.sh script

Remove the tag for building crypto so it match the python wrapper
Fix config override to work as expected. The messages are now correct
and the check for override is now working as expected
diff --git a/install.sh b/install.sh
index 8505234..03df987 100755
--- a/install.sh
+++ b/install.sh
@@ -36,7 +36,6 @@
     git clone https://github.com/miracl/milagro-crypto.git
 
     cd milagro-crypto || exit
-    git checkout tags/1.0.0
 }
 
 function build_crypto {
@@ -99,7 +98,7 @@
         esac
     fi
 
-    if [ $CONFIGURE ]
+    if [ $CONFIGURE == 1 ]
     then
         cp config_default.py config.py
         CONFIG_FILE=$(pwd)/config.py
@@ -125,7 +124,7 @@
     CONFIGURE=1
     if [ -f config.py ]
     then
-        echo "NOTE: Config file for DTA already exist"
+        echo "NOTE: Config file for RPS already exist"
         read -p "Do you want to override it (y/n)?" choice
         case "$choice" in 
           y|Y ) echo "yes"; CONFIGURE=1;;
@@ -134,7 +133,7 @@
         esac
     fi
 
-    if [ $CONFIGURE ]
+    if [ $CONFIGURE == 1 ]
     then
         cp config_default.py config.py
 
@@ -153,7 +152,7 @@
     CONFIGURE=1
     if [ -f config.py ]
     then
-        echo "NOTE: Config file for DTA already exist"
+        echo "NOTE: Config file for DEMO RPA already exist"
         read -p "Do you want to override it (y/n)?" choice
         case "$choice" in 
           y|Y ) echo "yes"; CONFIGURE=1;;
@@ -162,7 +161,7 @@
         esac
     fi
 
-    if [ $CONFIGURE ]
+    if [ $CONFIGURE == 1 ]
     then
         cp config_default.py config.py