basic ruleset in place
update readme
remove TODO item to force Xmx and Xms to be equal
basic rule works
refactor so you can pass in a block
experiment w/ ruby-units
refactor to use proper conversion between size units
properly define and evaluate rules
set heap_size using a percentage
first stab at add_rule
refactor to not use ruleset started
add_rule works
simplify example in readme
add another example to README