Fix _lp_battery return value when LP_ENABLE_BATT != 1
Optimize _lp_color_map using arithmetic comparisons
_lp_color_map: use dichotomy to more evenly distribute cost
_lp_color_map: rename 'load' to 'value'
Optimize _lp_load_color
git: litle optimisation (do not concat $end everywhere)
git: optimize changed lines extraction

- use "git diff --shortstat" to replace 3 different calls to "git diff"
- drop usage of awk
README: fix typos
_lp_git_branch: optimize code paths
Fix redundant (and slow): echo $(_lp_escape ...)

_lp_escape is: print "%q" "$*"
So echo $(_lp_escape ...) is a slow synonym for _lp_escape

Not all the usage cases are fixed in this commit. The remaining ones are
fixed in other patches with more global optimizations.
Optimize _lp_are_vcs_disabled (renamed to _are_vcs_enabled)

Use return code for the boolean return value instead of inefficient
usage of string values.
Merge pull request #177 from dolmen/optimize/load_color

Optimize loadavg display
Merge pull request #180 from dolmen/fix/doc

README: fix typos
Merge pull request #181 from dolmen/optimize/_lp_are_vcs_disabled

Optimize _lp_are_vcs_disabled
Merge pull request #182 from dolmen/fix/lp_escape-usage

Fix redundant (and slow): echo $(_lp_escape ...)
Merge pull request #183 from dolmen/optimize/git

More Git optimizations
Merge branch 'develop' of https://github.com/jaesivsm/liquidprompt into jaesivsm-develop

Conflicts:
	liquidprompt