Added resizing ability to columns

[Wardrop]

Columns can now be resized by clicking and dragging the right-edge of a column. Had to add an additional inner element to the element to avoid unwanted clicks causing the column to sort on resize.

Addresses issue #9

[Wardrop]

I've just added a commit that fixes an issue with the new exportData functionality from #703. It assumed the raw data/hash would match one-to-one with the defined fields, which obviously can't be assumed, and breaks when there's more elements in the data hash than there is defined fields.

[gattidaniel]

Hi wardrop,
I am quite new in github, this commit is already in the solution or it is waiting for an approval or something like that'

[Wardrop]

@gattidaniel Yeah it's awaiting to be merged into the main jsGrid branch. Right now the changes I've made live only in my fork of jsGrid.

[tabalinas]

@Wardrop, thank you for the valuable contribution!
Could you please exclude /dist/* changes from the PR?

[Wardrop]

I've reverted the changes to the dist directory, which has essentially removed them from the pull request.

[leonardolb560]

Hi, how can i get this patch/commit for now? I really need this feature =)

[ranlandau]

Well? why isn't it in dist?

[Wardrop]

For those who want to use this now, you can get the updated dist files from a previous commit of mine: https://github.com/Wardrop/jsgrid/tree/a9cfe25/dist

[softage0]

Any update for this feature?
This might not merge yet.

[KarloX2]

@Wardrop & @tabalinas : I'm eagerly waiting for this resize feature !=) I there anything missing to get this distributed? I'm looking forward to see this in action. Could you please tell us when to expect this - my project manager keeps asking... THANKS!

[MahdiMahzouni]

@Wardrop i'd like to contribute by making resizing work on rtl pages too , any suggestions ?
Currently resizing is inverted for rtl direction