New features for automatic reports (and bug fixes)

eye 1.1.0

summary of changes:

• new features for function eyestr
• important bug fixes

Details:

• eyestr: new "english" argument for more flexibility (#26)
• eyestr removed "para" argument
• eyestr prints one eye correctly in singular (#25)
• eyestr added "caps" argument for more flexibility of spelling
• eyestr removed "UK" argument (there is no difference in spelling for numbers :)
• eyes fixed missing reference to column (#27)
• added internal function tidyNA_low to avoid double tolower call
• recodeye fixed fail when trailing white space (#28)
• which_va fixed conversion error when mixed ETDRS and logmar (#29)