CorportionInfo's issuedShares property is explained incorrectly

[cjdhein]

Version 1.5.0 (b265d7b)

issuedShares is indicated to represent the 'Amount of shares issued'
totalShares also seems to represent the same data: 'Total number of shares issues by this corporation'

In reality, it seems that issuedShares provides the number of shares available for buy back. I think it should be given a name that more accurately reflects what it is and that also doesn't seem to conflict with the totalShares property.