0.3.0

• Added support for POSIX command line option behaviors
  • Options (short) start with a hyphen (-) and long options start with two hyphens (--)
  • Multiple short options can be grouped following a single hyphen
    • -a -b -c can also be written -abc or -bac, etc.
  • Option names are alpha numeric but long options may include hyphens
    • -v is valid, --ftest-coverage is valid
    • -# is not valid, --bad$option is not valid
  • Short options can be provided arguments with or without whitespace delimiters
    • -I /usr/local/include and -I/usr/local/include are equally valid
  • Long options can be provided arguments with whitespace or equal sign delimiters
    • --output test.txt and --output=test.txt are equivalent
  • Options and positional arguments can be interleaved
  • -- can be specified to treat all following arguments as positional arguments (i.e. not options)
• Added option definition validation
  • Checks for malformed flags
  • Checks for duplicate flags
• Added conversion functions for rest of fundamental integer types
• Built in conversion functions now utilize strtol(), strtoll(), strtof(), and strtod()
• Added char** argv overload of argagg::parser::parse()
• Removed argagg::optional, options now either receive arguments or they don't
• Added example derived from gengetopt documentation
• Expanded unit test coverage to 98%
• Added coveralls integration for code coverage reports