Remove Trailing Semicolons from Conditional Functions

WordPress's conditional tags are primarily used in `if` or `elseif` statements. Something like this:
```php
if( is_single() ) {
  // do something
}
```
This package autocompletes all [conditional tag functions ](http://codex.wordpress.org/Conditional_Tags) toend with semicolons, but that's rarely useful and usually a minor annoyance. Based on the myriad code examples across the web using conditional functions like that example omitting them seems like the better default. I'm not sure I've ever seen them saved to a variable which is the one instance I can think of needing the semicolon.

This pull request removes semicolons from every conditional I could find. Specifically, any functions with:
- `is\_`\*
- \*`\_is`
- `has\_`\*
- `have\_`\*
- \*`\_exists`
- `in\_`\*
- \*`\_open`