Point tesseract-ocr and libtiff-ios submodules to most recent stable releases and update libs

[kevincon]

No description provided.

[ws233]

I've been trying to update Tesseract and have faced an issue.
Neither of the tags from the upstream tesseract can be compiled. There is a broken commit ec9581d8f2b3895e7307609043a3ec1bc9c603c5 right before the tag 3.04.00, which doesn't allow to build Tesseract. And that commit has been reverted at 66a76a94772343582a70783a712f6248a81879ab. So all the latest tags are between those commits and cannot be compiled.
So there are 2 ways available to fix this.

1. Wait for the next stable upstream Tesseract release marked with the next tag.
2. Update to any other commit before the broken one or after the reverted one. But there are no more tags. So it seems that those history points could be unstable.
   So I suggest the first way and won't update the tesseract so far.

[kevincon]

I agree, I think 1 is the best option. Also I'm sorry I haven't reviewed your PRs yet; things are really busy at work but I'll try to take a look at them this weekend.

[podkovyrin]

There is new version of Tesseract 3.04.01 have released. I'm trying to compile it but stuck with following output from make

cd /Users/podkovyrin/Projects/Tesseract-OCR-iOS/TesseractOCR/libtiff-ios ; \
    until `/Applications/Xcode.app/Contents/Developer/usr/bin/make -s`; do sleep 5; done
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:--  0:00:04 --:--:--     0
curl: (78) RETR response: 550
/bin/sh: ../configure: No such file or directory
make[1]: *** [/Users/podkovyrin/Projects/Tesseract-OCR-iOS/TesseractOCR/libtiff-ios/libpng-1.6.20/arm-apple-darwin7/Makefile] Error 127
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:--  0:00:02 --:--:--     0

[ws233]

The wrong path to libpng
Ther is no files at this path anymore. You should manually fix the path to new files stored at libpng repo.

[podkovyrin]

@ws233 it worked, thank you

[ws233]

@podkovyrin, would you mind uploading a PR with your changes?

[podkovyrin]

Sure, as soon as corresponding PR will be merged ashtons/libtiff-ios#13

[kkotar]

ashtons merged commit 71ad425 into ashtons:master on Feb 25