v0.11.0.rc2: Widespread code reorganization (much more separation of concerns)

[sushain97]

• [x] move almost all handlers into separate files in apertium_apy.handlers. the problem with bunching them up into more than one per file is then they become undiscoverable or file names would become super long/contrived (fixes #95)
• [x] move all the utils into a folder with separate files
• [x] convert all relative imports to absolute
• [x] remove all the useless shebangs (those files never get run directly...)
• [x] run branch coverage (this lowered coverage, naturally)
• [x] add more basic tests to verify I haven't broken anything
• [x] consider moving some of the other top level py files in apertium_apy. maybe into tools?
• [x] consider replacing some of the re parsing with streamparser (will require it for more endpoints) (#98)
• [x] add debug flag to enable pipe debug, translate raw, etc. they shouldn't really be enabled on e.g. apertium.org (#97)
• [x] split tests into separate files (#100)
• [ ] consistent string formatting (linter?) this would take a lot of changes for not that much value

[coveralls]

Pull Request Test Coverage Report for Build 763

• 591 of 1106 (53.44%) changed or added relevant lines in 25 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage increased (+4.5%) to 41.292%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
apertium_apy/utils/wiki.py	0	2	0.0%
apertium_apy/handlers/stats.py	20	23	86.96%
apertium_apy/apy.py	16	20	80.0%
apertium_apy/handlers/list_modes.py	24	31	77.42%
apertium_apy/handlers/translate_raw.py	6	18	33.33%
apertium_apy/handlers/base.py	109	122	89.34%
apertium_apy/handlers/list_language_names.py	49	64	76.56%
apertium_apy/gateway.py	0	16	0.0%
apertium_apy/handlers/pipe_debug.py	6	23	26.09%
apertium_apy/handlers/identify_lang.py	10	29	34.48%
<!--	Total:	591	1106	53.44%	-->

Files with Coverage Reduction	New Missed Lines	%
apertium_apy/apy.py	1	56.54%
<!--	Total:	1		-->

Totals
Change from base Build 735:	4.5%
Covered Lines:	967
Relevant Lines:	2096

---

💛 - Coveralls

[sushain97]

Writing one of the tests uncovered two bugs \o/ (one an artifact from my last refactoring and one a bug that's been sitting around for who knows how long).

[sushain97]

Merged and released as rc2. Final rc will be rc3 and only planned changes are increased test coverage/test organization.