betty Process was not working. Changed category to allow calling help.
Changed help description to fix lowercase internet to Internet.
added some more examples to Find and Sizes
Merge pull request #62 from lpanebr/help-msgs-revised

Fixed help description and category and added some examples to Find and Sizes
added alternative queries to datetime
Merge pull request #72 from tak2siva/master

added alternative queries to datetime
Make curl silent
Merge pull request #76 from MiteshShah/master

Make curl silent
Simple commands for file operations -- copy, move, delete, rename
Merge https://github.com/tak2siva/betty into dev
please push to dev next time

Conflicts:
	lib/datetime.rb
	lib/find.rb
	lib/internet.rb
	lib/process.rb
	lib/sizes.rb
	lib/user.rb
Added lib/units.rb -- a multi-units converter;
Simplified lib/sizes.rb -- added `-h` switch for `du`;