Add Confluence update_page(always_update) and get_space(params) methods

[wlupton]

• update_page(always_update=False) allows the content check to be overridded
• get_space(params=None) allows params to be passed, e.g. type and status

[codecov-io]

Codecov Report

Merging #733 (387abf8) into master (88327f3) will increase coverage by 0.11%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##           master     #733      +/-   ##
==========================================
+ Coverage   36.60%   36.71%   +0.11%     
==========================================
  Files          31       32       +1     
  Lines        5527     5556      +29     
  Branches      792      794       +2     
==========================================
+ Hits         2023     2040      +17     
- Misses       3421     3433      +12     
  Partials       83       83              

Impacted Files	Coverage Δ
atlassian/confluence.py	12.71% <33.33%> (ø)
atlassian/jira.py	21.21% <0.00%> (-0.04%)	⬇️
atlassian/__init__.py	100.00% <0.00%> (ø)
atlassian/bamboo.py	22.78% <0.00%> (+0.84%)	⬆️

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[gonchik]

Thank you!