Fixed some peculiarities in ship characteristics in the database before rendering

[fjarri]

Namely:

• Rig size is rendered as a word instead of a number
• Maximum targeting range is rendered in kilometers
• Resistance percentages are rendered correctly as percentages (currently they are shown as parts of 1, but with % signs)
• Fixed units for capacitor and shield recharge times

[sixones]

Thanks this looks good, will merge in.