Create DB.java
Create DiskMgrException.java
Create DuplicateEntryException
Create FileEntryNotFoundException
Create FileIOException.java
Rename DuplicateEntryException to DuplicateEntryException.java
Rename FileEntryNotFoundException to FileEntryNotFoundException.java
Create FileNameTooLongException.java
Create InvalidPageNumberException.java
Create InvalidRunSizeException.java
Create OutOfSpaceException.java
Create Page.java
Create Makefile
Merge pull request #1 from ahmedaboemera/diskmgr

Diskmgr