"cause" --> "because" is not always valid

[heatxg]

Instances of "cause" are converted to "because". This is not always relevant.

Ex:

text = "The coming storm is likely to cause a lot of damage"
contractions.fix(text)

Output:
"The coming storm is likely to because a lot of damage."

---

This replacement is in leftovers_dict.json but is still applied with leftovers=False unless slang=False as well.

Ex:

text = "The coming storm is likely to cause a lot of damage"
contractions.fix(text, leftovers=False)

Output:
"The coming storm is likely to because a lot of damage."

Ex:

text = "The coming storm is likely to cause a lot of damage"
contractions.fix(text, leftovers=False, slang=False)

Output:
"The coming storm is likely to cause a lot of damage."

[kootenpv]

Thanks for filing the issue!

Maybe we can specifically add to cause to be replaced with to cause to prevent it from being changed.
Also "would cause", "should cause", "could cause"....