Tabula-py

This release change `guess` option behavior because of tabula-java fix. Choose `guess` option if you don't set `area` option. Now `stream` and `lattice` option can be used along with `guess` option together.

Also, drop Python 2.7, 3.4 support. See 167 for more details.

See Google Colab notebook for example.

- Bump tabula-java 1.0.3 167
- Drop Python 2.7, 3.4 167
- Add User-agent handling 151
- Introduce JAR path environment variable 136
- Enforce silent option 132

- `read_pdf_with_template()` function enables you to read Tabula app template https://github.com/chezou/tabula-py/pull/112
- Support file like object and pathlib handling with input https://github.com/chezou/tabula-py/pull/105
- Remove requests dependency https://github.com/chezou/tabula-py/pull/105

New feature: Allow multiple `area` option and relative `area` percentage.

See also: https://github.com/tabulapdf/tabula-java/releases/tag/v1.0.2

Bugfix and maintenance release:

- Refine heuristic to filter out tall-ish whitespace elements that can throw off text chunking by considering realistic font sizes (thanks travisbeale !)
- Lots of code cleanups and refactors (thanks ZaqueuCavalcante, Milchreis, GustavAT !)
- Update PDFBox to 2.0.24

Bug fix and maintenance release:

- Updated dependencies
- clarify `-a` command's coordinate order (thanks jeremybmerrill!)
- Extra information on coordinate system in command-line help text (thanks harrybiddle!)
- Fix excessive memory usage issue with large (many pages) PDFs
- `getFontSize` -> `getFontSizeInPt` (277)
- `CommandLineApp`: disable unused `--debug` flag
- Added a heuristic to filter out tall-ish whitespace elements that can throw off text chunking (thanks travisbeale)

Bug fix and maintenance release:

- Make `RectangleSpatialIndex` public (243 — Thanks ejschoen!)
- Add right and bottom of area to JSON output (265 — Thanks laigor!)
- `-g` flag in command line app translates to ExtractionMethod.DECIDE
- Updated dependencies