Modified helpers.c
Merge branch 'nithin' of https://github.com/nithinvnath/minirel into nithin
Openrel -> used fns from helpers.c for byte conversion
defs -> added PATH variable; may need further attention.
opencats -> implemented how cache[0], relcat's cache Entry is loaded. Needs to implement same for attrCat.
Merge branch 'nithin' into dheeraj
Unhealthy version. Commiting to push and debug in Nithin's system.
Inf. loop problem in Findrec()
DEBUGGING.. Unstable version. Inf loop problm
fixed the infinite loop problem
Insertrec and several fixes

- Added getLastRid() method
- Fixed getnextrec
- Implemented insertrec