LCD tutorials need fixes

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Vasile also said:

"""
4. page 97 three irrelevant pictures on a whole page
5. page 98 table on the top of the page (please add a table number) is 
talking about V5 (which is known in literature as VS or contrast voltage) 
and on the "remark" colums it says variable which is correct but 
6. on page 99 where is a schematic, the V5 becomes Vee (there is 
inconsistancy in table, schematics and probably in the book text). VS could 
be a -2.5...-5V output on many LCD, so you're telling to the beginner to 
kill his toy... VS should be connect in the worst circumstances with a 
resistor to ground. There are LCDs which need positive voltage around +2V 
on VS for a good contrast. The universal solution is a potmeter of 10-20K 
connected with wiper on the VS pin1 to +5V and pin3 to Vee (where Vee is a 
negative voltage). If LCD does need negative voltage, pin3 is connected to 
GND. See here a picture:
http://webspace.webring.com/people/dv/vsurducan/electro/PIC/f877.html

On your schematic is missing the reset capacitor from RA5 to GND and the 
100nF near the PIC supply and another 100nF near the LCD supply.
7. picture from page 100 should go on page 99
8. picture from page 101and 102 seems irelevant to me
"""

Original issue reported on code.google.com by [email protected] on 13 Mar 2010 at 8:31