add module lingvo

to get examples count and examples themselves
lingvo: fix style
lingvo: expand data base to store lingvo info
lingvo: fix url encoding and transtations name arg
lib: include Lingvo to lib constructor
db: add method to get and set lingvo counters
helpers: add method getDaysFrom

to determine outdated lingvo counters
lingvo: get lingvo rank as a sum of all word usage
lingvo: typofix
model: import all from model
db: add methods to add and remove Examples
db: move addExamples tp create log from update log
exam: fetch save Lingvo info

left debug info
lingvo: remove html logging in file
exam: mone getLingvo rank im separate function
all: small refactoring to get lingvo info
lingvo: send one request for one word

it is possible to discover examples count on examples page
helpers: add function randomSleep and fic getDaysFrom

getDaysFrom works with datetime data only
db: typofix
examlib: set random times for process lingvo words