added parameter “zipfile = FALSE” to as.telemetry.character

[xhdong-umd]

Use fread by default, fall back to read.csv for zip file.
The changes start here. There are more line ending characters changes even I have set it to posix(LF) in RStudio.

The vignette usage has been updated.

Added data.table, bit64 in DESCRIPTION.

Also #2

[chfleming]

Discussion in Issue #2

[chfleming]

@xhdong-umd

CRAN is complaining about bit64 not being called directly by the package, so I am moving bit64 from Imports to Suggests. I notice that data.table has bit64 as Suggests as well. I assume this won't hurt anything.

[xhdong-umd]

data.table will try to load bit64 automatically when it see columns with big numbers.

When fread() or print() see integer64 columns are present, bit64's namespace is now automatically loaded for convenience.

If bit64 is not available, it will issue some warnings.

It should be fine to put bit64 in Suggests since it will still work.