Update to preamble._tex -- 'inconsolata.sty' changed to 'zi4.sty'

Around June this year there were major changes made to the inconsolata style file. Subsequently, within LaTeX the *style* file was renamed from 'inconsolata.sty' to 'zi4.sty'. Somewhat confusingly, the *package* name renames the same (inconsolata):

http://www.ctan.org/tex-archive/fonts/inconsolata/tex

Within MikTeX 2.9, in the current version of the inconsolata package (version 1.03, released 2013-07-29), the same change is reflected. More information here:
http://tex.stackexchange.com/questions/119925/inconsolata-missing-after-miktex-update

This update to the `pramble._tex` reflects this change to maintain compatibility with current version of MikTex (and I suspect other LaTeX distributons).