Added Makefile for documentation generation.
Update glider string formatting function with new design (more flexibility and new and improved conversions).
Updated path configuration functions to reflect new deployment field specifiers.
Improved NetCDF reading and writing functions with added support for NetCDF datatypes other than double.
Fixed error selecting legend position in profile statistics plot function.
Changed marker style in TS diagram plot function.
Tiny change in figure printing function for compatibility with Octave.
Added flntu time sensor sequence and oxygen time and temperature sequences to processed data.
Updated configuration files for flntu time and oxygen time and temperature sensors introduced in last commit.
Fixed bad range problem in vertical section plotting function (bad range when there is only one data value).
Changed valid data selection for isopycnal contour computation in TS diagram plotting function to make it tighter.
Fixed bad label positions in TS diagram generating function.
Insignificant improvement in tick settings in current map plotting function (fix strange behavior).
Fixed merged time stamp selection in dba merging function.
Improved public figure copying in main processing scripts.
Updated real time Slocum file option configuration function (added support for freewave surface logs).
Updated NetCDF L0 output configuration function (added GPS status).
Fixed bad data inconsitency check bug in dba concatenating function.
Recoded option handling in Slocum data loading functions for consistency, and adapted main scripts to new code.

  * Switch time filtering period input units in load Slocum data
    from serial date numbers to POSIX time.
Renamed struct string format function strfglider to strfstruct, and adapted related code.