whitespace, debug fixes, housekeeping

makeTestData.py:
- changed sizes of some test data

files.cpp/h:
- added chunk type to time_slice code to allow for reads & writes to be
tracked separately
- whitespace

parcel.cpp:
- added carriage return to status updates for file sending
- added encryption to long args
- changed text of run_client/server to be correct with create_thread
(was cut & wasted as "crypto_update_thread")
- added some debug output

receiver.cpp:
- added carriage return to status updates
- debug output

sender.cpp/h:
- added function to check if the write pipe is empty
- added functionality to log times in sending of files to an array that
can be spit out for graphing purposes
- added carriage return to status updates

timer.cpp/h:
- changed functionality of timers so they have to be manually started
instead of just started on create. this saves having to instance a timer
every time one is started, because they can be reused.