Bugfix/session mem leak

[SakornW]

Fixes #130

Changes proposed in this pull request:

• ensure close session in del instead of atexit

Attention: @prkumar

[codecov]

Codecov Report

Merging #134 into master will decrease coverage by 0.05%.
The diff coverage is 91.66%.

@@            Coverage Diff             @@
##           master     #134      +/-   ##
==========================================
- Coverage     100%   99.94%   -0.06%     
==========================================
  Files          38       38              
  Lines        1867     1873       +6     
  Branches      158      158              
==========================================
+ Hits         1867     1872       +5     
- Misses          0        1       +1

Impacted Files	Coverage Δ
uplink/clients/aiohttp_.py	100% <100%> (ø)	⬆️
uplink/clients/requests_.py	97.72% <80%> (-2.28%)	⬇️

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[codecov]

Codecov Report

Merging #134 into master will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff          @@
##           master   #134   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files          38     38           
  Lines        1867   1888   +21     
  Branches      158    160    +2     
=====================================
+ Hits         1867   1888   +21

Impacted Files	Coverage Δ
uplink/clients/requests_.py	100% <100%> (ø)	⬆️
uplink/clients/aiohttp_.py	100% <100%> (ø)	⬆️
uplink/arguments.py	100% <0%> (ø)	⬆️
uplink/converters/keys.py	100% <0%> (ø)	⬆️

---

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[prkumar]

@SakornW - Just to follow up: if you'd like your name to appear in the AUTHORS.rst file, please let me know what name and/or public handle (e.g., @SakornW) that you'd like me to append to the file. For example, here's my entry in AUTHORS.rst:

Raj Kumar (@prkumar)

Alternatively, you could open a separate PR with that change. Whatever works best for you! Thanks for contributing 😃

[SakornW]

@prkumar Thanks, that would be nice :).
Please help append as 'Sakorn Waungwiwatsin @SakornW'

[prkumar]

@SakornW - Added! 😄