fix link for Thinking in C++
Added SQL Server books from RedGate

Tested and confirmed download links.  A couple require name & email; a few suggest you download other stuff, but you don't have to.  Removed direct PDF link of Mastering SQL Server Profiler in favor of the book's page on RedGate.
Added two books in Mathematics section

I wasn't sure if Advanced Data Analysis belonged in Datamining or Mathematics, but it seems to focus more on the math side of things
add some guides to the Rails section in the Russian version, renamed the title of the book about Ruby
Added E-Books Directory to Meta-Lists

Site contains a good deal of free books on a wide variety of subjects.
add JavaScript Garden to the Russian version
add coffeescript section to the Russian version
Merge pull request #160 from jihyq9/patch-1

fix link for Thinking in C++
Merge pull request #161 from corragon/patch-3

Added SQL Server books from RedGate
Merge pull request #162 from corragon/patch-4

Added two books in Mathematics section
Merge pull request #163 from Anakros/master

add some guides to the Rails section in the Russian version, renamed the...
Merge pull request #164 from corragon/patch-5

Added E-Books Directory to Meta-Lists
Fixed the jQuery index link

Fixed the jQuery index link matching the anchor name.
Merge pull request #166 from martinvd/patch-1

Fixed the jQuery index link