fixing issue #64

this seems like a problem with wp function, only if its throwing 404 errors.

http://codex.wordpress.org/Function_Reference/sanitize_title

this fixes the critical issue #64

it is a revert of issue #45 with the commit 
https://github.com/not-only-code/qtranslate-slug/commit/5b5c2d526525d3df874a5bdf85c5fd623af8fda5
fixed issue #65 and added functionality to displying the default styles
few cosmetic edits and most importantly, fixing the tag creation in post edit screen
version bump and cleaning some leftover comments
Fixed link in readme
Some cosmetic changes in admin settings style section
Added version constant 1.1.7 (we missed it all the time)
readme changes
readme changes
changed .gitignore
deleted readme.txt
Portuguese translation

Portuguese translation language files