* Fixed issue #243. Added optimize integration tests.
* Minor style change.
* XObjImage getParamsDict updates Columns and Rows.
* Added doc file for the optimize/tests package.
* UpdateParams for CCITTFax Encoder accepts Width and Height also. Removed
GetParamsDict Columns and Rows parameters from model.Image and
model.XObjImage.
* Fix i386 issue for the jbig2 arithmetic encoder.
* Added 386 architecture to the .travis/cross_build.sh
* Skip invalid pop operation on empty graphics state stacks
* Fix clipping input values to size for Type 0 Functions
* Do not pass invalid Q content stream operator to external handlers
* Fixed PdfColorspaceSpecialIndexed.ImageToRGB() Fixes https://github.com/unidoc/unipdf/issues/258
* Fixed indexed colorspace bounds checking.
* Being super cautious to prevent a divide by zero error. I don't think the base cs can have <1 cpts.
* Updated image hash in extract_images_test.go to match new indexed colorspace code.
* add testfile from unipdf#258
* Add PdfFont method for encoding runes to charcode bytes
* Add getter method for CMap nbits
* Take CMap nbits into account when encoding text
* Adapt font test cases to include text encoding testing
* Add packed predefined cmaps
* Add cmap cid range parsing
* Load base cmap for predefined cmaps
* Refactor pdfFont to Unicode methods
* Preserve CharcodeBytesToUnicode behavior
* Add support for CID-keyed Type 0 fonts
* Add method documentation for the cmap package
* Refactor and document charcode to Unicode conversion code
* Add more cmap parsing test cases
* Add more method documentation in the cmap package.
* Remove unused code from the bcmaps package
* Improve cmap test case
* Assume identity when encoder is missing on regenerating field appearance
* Add missing encoder log message
* Add inverse CMap mappings
* Add CMap encoder
* Address golint notices and small fix in the cmap package
* Keep smaller charcodes when generating cmap inverse mappings
* Update extractor test case
* Keep latest supplement charcodes/CIDs when computing inverse mappings
* Fix comment typo
* Take decode arrays into account when processing grayscale images
* Adapt image extraction test case hashes
* Minor refactoring in the ColorAt image method
* Always return vanilla data from the jbig2 decoder
* initial commit to add action support
* Add support for all actions as defined in the specs
* Implement filespec for actions
* Add url filespec test
* update file test
* Implement remarks + add tests
* Add ColorAt method for images
* Avoid resample on image to Go image conversion
* Avoid resample when converting grayscale image to RGB
* Preserve old behavior of image to Go image conversion
* Add missing case in the ToGoImage method
* Fix grayscale to RGB image conversion
* Improve code documentation
* Fix color extraction for CMYK and 4 bit RGB
* Add test case for the ColorAt image method
* Avoid resampling when converting CMYK image to RGB
* Add notice comment for the GetSamples/SetSamples image methods
* Make PdfObjectDictionary Merge method chainable
* Update page resources Font dictionary when applying license information
* Add license font to the page resources only when it does not exist
* Update hash for split test after verification
