update version 3.5.1.
Update README.md

Add fix for IE8 Invalid Character.
Merge pull request #66 from camsong/master

Add IE8 Invalid Character Fix Configuration
update version 3.5.2.
Adds Select2 bootstrap theme
Update source_file.rb
Update and rename select2_locale_ua.js to select2_locale_uk.js
Add depend_on for image assets
Merge pull request #77 from irobayna/master

add depend_on_asset to make rails asset pipeline happy
Merge pull request #76 from epaminond/patch-2

[uk] renamed ukrainian locale
Merge pull request #74 from pallan/master

Adds Select2 bootstrap theme
merge change.
update version.
change readme file.
remove duplicate file boostrap css, rename ua to uk (js file), update readme.md and update version
README typo
add serbian (rs) locale
Merge pull request #80 from budnik/patch-2

README typo
Alter instruction for including bootstrap

The current instruction isn't clear on whether the require select2-boostrap is needed in place of or in addition to the regular select2 require.  Hopefully, this should save first time users some time figuring that out.
Merge pull request #81 from TechFounder/patch-1

Alter instruction for including bootstrap