Fix problematic characters in transliteration file

[r12a]

Characters used in syntax should be screened out of the transliteration file.

Here is an example of zgh-translit.js as currently produced by the algorithm:

{"\u{2D52}":"p","\u{2D5C}":"t","\u{2D5F}":"t\u{2C1}","\u{2D5E}":"\u{2A7}","\u{2D3D}":"k","\u{2D3E}":"k\u{307}","\u{2D47}":"q","\u{2D48}":"q\u{307}","\u{2D31}":"b","\u{2D37}":"d","\u{2D39}":"d\u{2C1}","\u{2D35}":"\u{2A4}","\u{2D36}":"\u{2A4}\u{307}","\u{2D33}":"g","\u{2D3C}":"f","\u{2D5D}":"\u{3B8}","\u{2D59}":"s","\u{2D5A}":"s\u{2C1}","\u{2D5B}":"\u{283}","\u{2D3F}":"x","\u{2D45}":"\u{3C7}","\u{2D46}":"\u{3C7}\u{307}","\u{2D43}":"\u{127}","\u{2D40}":"h","\u{2D41}":"h\u{307}","\u{2D42}":"h\u{308}","\u{2D32}":"\u{3B2}","\u{2D60}":"v","\u{2D38}":"\u{F0}","\u{2D3A}":"\u{F0}\u{2C1}","\u{2D63}":"z","\u{2D64}":"z\u{307}","\u{2D65}":"z\u{2C1}","\u{2D4A}":"\u{292}","\u{2D4B}":"\u{292}\u{307}","\u{2D4C}":"\u{292}\u{308}","\u{2D34}":"\u{29D}","\u{2D56}":"\u{281}","\u{2D57}":"\u{281}\u{307}","\u{2D58}":"\u{281}\u{308}","\u{2D44}":"\u{295}","\u{2D4E}":"m","\u{2D4F}":"n","\u{2D50}":"\u{272}","\u{2D51}":"\u{14B}","\u{2D61}":"w","\u{2D54}":"r","\u{2D55}":"r\u{2E4}","\u{2D4D}":"l","\u{2D62}":"y","\u{2D49}":"i","\u{2D53}":"\u{28A}","\u{2D3B}":"\u{259}","\u{2D66}":"e\u{307}","\u{2D67}":"o","\u{2D30}":"a","\u{2D6F}":"\u{2B7}","\u{2D7F}":"\u{353}","\u{307}":"\u{2D9}","\u{309}":"\u{2BC}","\u{302}":"\u{2C6}","\u{304}":"\u{2C9}","\u{2D45}\u{2D6F}":"x\u{2B7}","\u{2D47}\u{2D6F}":"q\u{2B7}","\u{2D56}\u{2D6F}":"\u{263}\u{2B7}","\u{2D70}":" \u{B6}",".":".",",":",",":":":",";":";","!":"!","?":"?","\u{2026}":"\u{2026}","\u{AB}":"\u{AB}","\u{BB}":"\u{BB}","\u{2039}":"\u{2039}","\u{203A}":"\u{203A}","\u{201C}":" \u{201C}","\u{201D}":"\u{201D}","\u{2018}":"\u{2018}","\u{2019}":"\u{2019}","(":"(","[":"[",")":")","]":"]","-":"-","\u{2011}":"\u{2011}","\u{2013}":"\u{2013}","\u{2014}":"\u{2014}","\u{2BC}":"\u{2BC}","\u{A7}":"\u{A7}","\u{2020}":"\u{2020}","\u{2021}":"\u{2021}","\u{2032}":"\u{2032}","\u{2033}":"\u{2033}","\u{200C}":"\u{2093}","\u{200D}":"\u{208A}","\u{2067}":"\u{2B3}\u{2E1}\u{2071}","\u{2066}":"\u{2E1}\u{2B3}\u{2071}","\u{2068}":"\u{1DA0}\u{2E2}\u{2071}","\u{2069}":"\u{1D56}\u{1D48}\u{2071}","\u{202B}":"\u{2B3}\u{2E1}\u{1D49}","\u{202A}":"\u{2E1}\u{2B3}\u{1D49}","\u{202C}":"\u{1D56}\u{1D48}\u{1DA0}","\u{200F}":"\u{2B3}\u{2E1}\u{1D50}","\u{200E}":"\u{2E1}\u{2B3}\u{1D50}","\u{34F}":"\u{1D9C}\u{1D4D}\u{2B2}","\u{61C}":"\u{1D43}\u{2E1}\u{1D50}","%":"%","\u{2030}":"\u{2030}"}