Added @import doMC to areaSieve and roxygenised
doMC added to DESCRIPTION
annualSummary re-written to handle dates more effectively.

A separate dates argument is included to handle non-Landsat data, or data lacking a date dimension or appropriate layer names. Support for a z-dimension including dates is now included.

Also, there was a conflict with the years argument and an internal variable which has now been solved.
Added support for z-dimension

This is implemented in functions where a dates vector is required (either explicitly supplied or derived from the z-dimension or names(x)).

Also, doMC was removed from @import and replaced with foreach, and also replaced in DESCRIPTION to prevent the error in roxygenise().

Package was finally roxygenise()'d after all changes
Merge branch 'feature-getZ' into develop
Function to check if character conforms to Landsat naming convention
Created .hasLandsatSceneID()

Function returns TRUE if all elements of input conform to Landsat sceneID, and FALSE otherwise. Works on raster objects and character vectors.
Simplified the isLandsatSceneID function and extended it to the classes rasterBrick / rasterStack
Renaming of the file went wrong in the previous commit
Merge branch 'master' into develop
merge with remote branch

Merge branch 'feature-isLandsatSceneID' of http://github.com/dutri001/bfastSpatial into feature-isLandsatSceneID

# Please enter a commit message to explain why this merge is necessary,
# especially if it merges an updated upstream into a topic branch.
#
# Lines starting with '#' will be ignored, and an empty message aborts
# the commit.
Forgot to include all() in first condition
Edited functions to include .isLandsatSceneID as a check
Merge branch 'feature-isLandsatSceneID' into develop

Merge into develop
fixed bug in sensor check
fixed bug in bfmPixel()

This was only evident in ordered rasterBrick's when 'sensor' is used. Now it should work in all cases.
Merge branch 'fix-bfmPixel' into develop
clarified documentation of .isLandsatSceneID
debugged annualSummary and removed sceneID argument
Removed sceneID argument from all functions.

Also checked for consistency in sensor options (including use of .isLandsatSceneID)