Updated install.sh to solve problems mentioned in forum

Within the forum https://forums.hak5.org/index.php?/topic/40237-install-tools/
there were several problems mentioned which are solved with this update:

1. No need to move instead of copying tools_to_install to the switch directory due to use of bunny_helpers.sh
2. Check if everything is copied works even when the user OS has added hidden files (removing hidden files before test)

payloads/library/tools_installer/install.sh

@@ -1,6 +1,10 @@
+# To avoid the use of find in the next section, let's verify the switch position
+# and therefore the exact position of tools_to_install
+source bunny_helpers.sh
+
 # Check to ensure that the tools_to_install directory isn't empty. 
 # Exit with solid red LED if it is, otherwise note tools in log.
-TOOLSDIR=$(find /root/udisk/payloads/ -name tools_to_install)
+TOOLSDIR=/root/udisk/payloads/$SWITCH_POSITION/tools_to_install/
 if [ "$(ls -A $TOOLSDIR)" ]; then
     cd $TOOLSDIR
 	echo "Available Tools:" > /tmp/tools_installer.log
@@ -16,6 +20,9 @@ LED R B 100
 mkdir -p /pentest
 mv $TOOLSDIR/* /pentest/
 
+# Be sure that there are no OS made hidden files in the directory
+rm .*
+
 # Set LED to purple solid and check that move completed
 LED R B
 if [ "$(ls -A $TOOLSDIR)" ]; then