Extend Page Navigation bar with manual page input

[Dmitriy Sanko]

Todo

Input for page and button with text 'Go' (in English) should be added to the right of current page navigation.
It will look like this:

Input behaviour:

1. Action: We enter number in range from '1' to max page number then press key 'Enter' on keyboard or button 'Go'
   Result: Current page is entered value, input is clear
2. Action: We enter number less than '1' then press key 'Enter' on keyboard or button 'Go'
   Result: Current page is not changed, input is clear
3. Action: We enter number more then max page number then press key 'Enter' on keyboard or button 'Go'
   Result: Current page is max page number, input is clear
4. Action: We enter value which contains non-numeric symbols then press key 'Enter' on keyboard or button 'Go'
   Result: Current page is not changed, input is clear

[Alexey Sergeev]

Tes it here

[Nikolai Stoliar]

Tested for FF, IE and Chrome. Pages are changed correctly using manual page input or clicking on appropriate page number or 'previous'/'next' arrow. Please, merge with master branch. Spent 1 hour.

[Dmitriy Sanko]

Please, release it.