- Add new symbologies BARCODE_EAN8, BARCODE_EAN_2ADDON,

`BARCODE_EAN_5ADDON`, `BARCODE_EAN13`, `BARCODE_EAN8_CC` and
  `BARCODE_EAN13_CC` as replacements for `BARCODE_EANX`,
  `BARCODE_EANX_CHK` and `BARCODE_EANX_CC` and use in CLI/GUI
  (`BARCODE_EANX` etc. marked as legacy)
- For EAN/UPC accept space as alternative add-on separator to '+',
  and accept GTIN-13 format with & without 2-digit or 5-digit
  add-on (no separator)
- Buffer length of member `errtxt` in `zint_symbol` extended 100
  -> 160 (will be sufficient for eventual translation and
  gs1-syntax-dictionary errors hopefully)
- UPC-E: warn if first digit of 7 (or 8 if check digit given) not
  '0' or '1'
- manual: update for new EAN symbologies and mention EANX now
  legacy but still supported

docs/zint.1.pmd

@@ -263,7 +263,7 @@ Paintbrush (`PCX`), Portable Network Format (`PNG`), Scalable Vector Graphic (`S
         5   Enhanced ECC for all of the message
         6   Reader Initialisation (Programming)
 
-    For GS1 Composite symbols (names end in `_CC`, i.e. EANX_CC, GS1_128_CC, DBAR_OMN_CC etc.):
+    For GS1 Composite symbols (names end in `_CC`, i.e. `EAN8_CC`, `EAN13_CC`, `GS1_128_CC`, `DBAR_OMN_CC` etc.):
 
         1   CC-A
         2   CC-B
@@ -627,7 +627,7 @@ to create a series of EAN-13 barcodes, formatting the output filenames to "ean00
 special character "~".
 
 ```bash
-zint -b EANX --batch -i 'ean13nos.txt' -o 'ean~~~.gif'
+zint -b EAN13 --batch -i 'ean13nos.txt' -o 'ean~~~.gif'
 ```
 
 # BUGS