[#118] Removes cursor dependency

[manrajgrover]

Description of new feature, or changes

This PR removes cursor dependency. It replaces it with the code available in stackoverflow answer: https://stackoverflow.com/a/10455937/2692667

Checklist

• [x] Your branch is up-to-date with the base branch
• [x] You've included at least one test if this is a new feature
• [x] All tests are passing

Related Issues and Discussions

Fixes #118

People to notify

None

[coveralls]

Pull Request Test Coverage Report for Build 438

• 44 of 67 (65.67%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-6.0%) to 85.045%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
halo/halo.py	28	30	93.33%
halo/cursor.py	5	26	19.23%
<!--	Total:	44	67	65.67%	-->

Totals
Change from base Build 429:	-6.0%
Covered Lines:	311
Relevant Lines:	356

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 434

• 44 of 67 (65.67%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-6.0%) to 85.045%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
halo/halo.py	28	30	93.33%
halo/cursor.py	5	26	19.23%
<!--	Total:	44	67	65.67%	-->

Totals
Change from base Build 429:	-6.0%
Covered Lines:	311
Relevant Lines:	356

---

💛 - Coveralls