Bash Parser - `\` character now allowed in commands

- Still need to do loops.
`--custom` now works - fixes #149
`-C` bonus package bug fixed - fixes #147
Version bump - 1.2.1.2

- Happy Thanksgiving!
Added installation verification to AUR search
implemented Set data structure for efficiency
update italian traslation
Avoid grouping the backslash as a single
Search by vote counts on AUR by default
Merge pull request #162 from Valantin/master

Updating italian translation
Fixed line order after Italian translation merge
Merge pull request #164 from tlunter/fix_backslash_issue

Avoid grouping the backslash as a single
Merge branch 'master' of git://github.com/fosskers/aura
Merge pull request #159 from utdemir/master

[Feature Request] Add ability to sort AUR search results by vote counts
Added `--abc` flag for `-As` result sorting

- Use `--abc` to sort the results of `-As` alphabetically.
Minor function name changes
Merge branch 'master' of git://github.com/eazar001/aura into eazar001-master
Spruced up the changes that add "[installed]" to `-As`
Add and improve French translations
Correct some French translations (spelling, ...)