added charting for memory usage, fixed date parsing and delimiter iss…

Merge pull request #3 from tomek-szczesny/main

control c signal handler added

network udp feed completed and readme.md updated

fixed parsing for -g check.

fixed parsing past last option.

expanded documentation in readme.md and other minor changes.

updated readme.md and added example chart, corrected usage()

reverted changes to sums in usage.

added canconical selection to set_interface_attribs to support smartp…

changed options -s to -i, -b to -a and changed usage chart major y-ti…

polling interval, option -s changed to milliseconds for better data r…

single shot mode with no lead count

changed to 64 bit types for usage arrays and smartpower ms time.

fixed formatting and removed tabs from merge, removed extra spaces in…

Merge pull request #2 from tomek-szczesny/main

updated readme.md and other minor changes to usage() and gnuplot scri…

gnuplot chart scripting for all data source combinations added.

proc stat data stream added and initial work for adding it to charting

changed parsing for dev name

use canonical unbuffered i/o for smartpower serial input, fixed -p pa…

fixed gnuplot issue for power charts, data type and code cleanup

fixed fclose issue for smartpower

mcp9808 completed, default i2c change to i2c0, changed default line s…

changed chart aspect ratio, line colors and increased frequency range…

initial work for sensor mcp9808, work in progress.

seperated data labels and line style in gnuplot script, other minor f…

expanded charts to include any individual or combination of data stre…

chart title and x axis major tic set from commandline options

use system thermal zone names for -v output