Merge branch 'hot_fix' into 'main'

.gitignore

files/delete_files.sh

files/send_jars.sh

mp3_logs/introducer.log

mp3_logs/member_5001.log

mp3_logs/member_5002.log

mp3_logs/member_5003.log

out/artifacts/sdfs_jar/sdfs.jar

src/main/java/cs425/mp3/MembershipList/MemberList.java

src/main/java/cs425/mp3/Messages/MessageType.java

src/main/java/cs425/mp3/membership/Member.java

src/main/java/cs425/mp3/test/file25mb.txt

src/main/java/cs425/mp3/test/test.txt

src/main/java/cs425/mp3/test/test1.txt

src/main/java/cs425/mp3/test/test2.txt

src/main/java/cs425/mp3/test/test3.txt

target/classes/cs425/mp3/MembershipList/MemberList.class

target/classes/cs425/mp3/Messages/MessageType.class

target/classes/cs425/mp3/membership/Member$1.class

target/classes/cs425/mp3/membership/Member$2.class