Fixing a bidi problem on titles

* It is less hackish than lrm (it will be usful in a complete RTL UI also) but please refactoring bidi-embed class if needed (rename, if needed)
* lrm was making an extra space for all, so this is fixup for it

This is revert of https://github.com/Athou/commafeed/issues/257 somehow but it doesn't break its functionallity, tested

### where lrm was used
Before https://github.com/Athou/commafeed/issues/257
![2013-07-11 10_24_26-8 - commafeed](https://f.cloud.github.com/assets/833473/779834/8abd17f2-e9ee-11e2-9b6f-bfe0f3c1abb2.png)
After https://github.com/Athou/commafeed/issues/257
![2013-07-11 10_24_59-8 - commafeed](https://f.cloud.github.com/assets/833473/779838/996789fe-e9ee-11e2-8d88-905c4e300aa7.png)
After this commit
![2013-07-11 10_25_29-8 - commafeed](https://f.cloud.github.com/assets/833473/779841/a0fe1250-e9ee-11e2-80ec-39436a1d2e07.png)

#### Extra space was everywhere
Before this commit:
![2013-07-11 10_38_55-7 - commafeed](https://f.cloud.github.com/assets/833473/779882/7d19aa32-e9f0-11e2-85c8-8c360e8efd70.png)
After:
![2013-07-11 10_39_13-7 - commafeed](https://f.cloud.github.com/assets/833473/779883/82ca5576-e9f0-11e2-8997-5d36810b2c33.png)


### on view.entry_source
Before this:
![2013-07-11 10_31_16-6 - commafeed](https://f.cloud.github.com/assets/833473/779865/98869f2e-e9ef-11e2-9fe3-cead082d5a4d.png)
After:
![2013-07-11 10_31_00-5 - commafeed](https://f.cloud.github.com/assets/833473/779867/a1dc687e-e9ef-11e2-9f66-1756b9fd8eec.png)

P.S. Nevermind about such these problems, I am here to fix them forever! :P