Update jars, fix link rot

[randyzwitch]

Update jars to the newest ones online, fix documentation where
DataFrames moved to JuliaData.

[randyzwitch]

During local Pkg.test(), there are starting to be warnings. The current JBIG2ImageReader is GPLv2 (though its moving to ASF). For the other, bundling sqlite jdbc doesn't make sense.

julia> Pkg.test("Taro")
INFO: Testing Taro
Loaded /Library/Java/JavaVirtualMachines/jdk1.8.0_77.jdk/Contents/Home/jre/lib/server/libjvm.dylib

signal (11): Segmentation fault: 11
while loading /Users/randyzwitch/.julia/v0.6/Taro/test/runtests.jl, in expression starting on line 5
unknown function (ip: 0x12cb922b3)
Allocations: 7883915 (Pool: 7882279; Big: 1636); GC: 13
Jan 27, 2018 7:40:09 PM org.apache.tika.config.InitializableProblemHandler$3 handleInitializableProblem
WARNING: JBIG2ImageReader not loaded. jbig2 files will be ignored
See https://pdfbox.apache.org/2.0/dependencies.html#jai-image-io
for optional dependencies.
TIFFImageWriter not loaded. tiff files will not be processed
See https://pdfbox.apache.org/2.0/dependencies.html#jai-image-io
for optional dependencies.
J2KImageReader not loaded. JPEG2000 files will not be processed.
See https://pdfbox.apache.org/2.0/dependencies.html#jai-image-io
for optional dependencies.

Jan 27, 2018 7:40:09 PM org.apache.tika.config.InitializableProblemHandler$3 handleInitializableProblem
WARNING: org.xerial's sqlite-jdbc is not loaded.
Please provide the jar on your classpath to parse sqlite files.
See tika-parsers/pom.xml for the correct version.

signal (11): Segmentation fault: 11
while loading /Users/randyzwitch/.julia/v0.6/Taro/test/runtests.jl, in expression starting on line 7
unknown function (ip: 0x12cdb3ffa)
Allocations: 8445403 (Pool: 8443756; Big: 1647); GC: 14

signal (11): Segmentation fault: 11
while loading /Users/randyzwitch/.julia/v0.6/Taro/test/runtests.jl, in expression starting on line 16
unknown function (ip: 0x12cffdebc)
Allocations: 8979067 (Pool: 8977386; Big: 1681); GC: 15
INFO: adding t1 sheet ...
INFO: adding t2 sheet ...
INFO: wrote all dataframes to /Users/randyzwitch/.julia/v0.6/Taro/test/df-test-writexl.xlsx.
INFO: adding df1 sheet ...
INFO: adding df2 sheet ...
INFO: wrote all dataframes to /Users/randyzwitch/.julia/v0.6/Taro/test/df-test-writexl.xlsx.
INFO  Rendered page #1.
INFO: Taro tests passed

[randyzwitch]

appveyor fails again for the same reason as #38, but Travis passes tests. Ready to merge.

[aviks]

Yeah, these warnings are annoying, and not terribly useful after you have seen them for a hundred times. Maybe there is some env variable to turn them off?

Thanks for this.