0.3.0

This is the third alpha release of the shell. It brings again a lot of new features and bugs. :) Below are changes since the last version:

Tag BREAKING means the change break compatibility with a previous version
of the shell.

Added

• Shell's commands' history now remember directory in which the command used
  last time and prioritize the local commands
• Support for shell's read-only options
• Ability to select how the shell's history should be sorted
• Ability to reverse direction of the shell's history last commands list
• Ability to set the amount, order and direction of order of the last commands
  to show for history list command
• Ability to redirect output of aliases to standard error or the selected file
• Ability to set the output of a program or script as the shell's prompt
• The shell's plugins' system

Changed

• Better getting commands from the shell's history
• Better help entry for history list command
• Type of some of the shell's options' to natural instead of integer
• Updated README.md
• BREAKING: Renamed command history show to history list to match other
  subcommands related to listings
• BREAKING: Renamed command options show to options list to match other
  subcommands related to listings

Fixed

• Reading command line parameters, when there is set database path and the
  command to execute
• The program's help about setting the database's path
• Showing error information during Tab completion
• Showing error information during getting command from the shell's history
• Showing error message on standard output instead of standard error
• The look of alias show command when the description of the alias is empty
• Pressing Enter key, repeat the last entered command
• The cursor position during editing a command